Day: November 10, 2020

It is a common heterocyclic compound, the iron-catalyst compound, 1,1′-Dibromoferrocene, cas is 1293-65-8 its synthesis route is as follows.

1 ,1 ‘-Dibromoferrocene (0.67 g, 1.97 mmol) in anhydrous tetrahydrofuran (THF) (30 ml) was placed in a reaction vessel and cooled to -78 0C using a dry ice and acetone mixture, n-butyl lithium (0.94 ml, 2.36 mmol) was added under inert conditions thereto and the contents of the reaction vessel kept stirred for approximately 1 hour while cold zinc chloride (2.16 ml, 2.16 mmol) was added. Tetrakis(triphenylphosphine)palladiumO (50 mg) and 4,5- dichlorophthalonitrile (0.5 g, 1.97 mmol) were then added. The contents of the reaction vessel were allowed to warm to room temperature and were kept stirred for approximately 2 hours before heating to approximately 90 0C for 12 hours. Thereafter, water (20 ml) was added and extracted with dichloromethane (3 x 20 ml). The combined organic layers were dried over magnesium sulfate and reduced to dryness under reduced pressure to obtain a crude product. The crude product was placed on alumina and eluted with diethyl ether ; petroleum spirit (55:45) to yield red crystals.

1293-65-8, In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles.,1293-65-8 ,1,1′-Dibromoferrocene, other downstream synthetic routes, hurry up and to see

Reference£º
Patent; CORUS UK LIMITED; HOLLIMAN, Peter; RUGEN-HANKEY, Sarah; WO2010/136178; (2010); A1;,
Iron Catalysis in Organic Synthesis | Chemical Reviews
Iron Catalysis in Organic Synthesis: A Critical Assessment of What It Takes To Make This Base Metal a Multitasking Champion

1287-16-7, In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. Ferrocenylacetic acid, cas is 1287-16-7,the iron-catalyst compound, it is a common compound, a new synthetic route is introduced below.

1) 1.1 mmol of ferrocenyl acetic acid and 1 mmol of 3- (3-methylphenyl) -4-amino-5-mercapto-1,2,4-triazole were weighed out,Added to a dry 250mL single-necked flask,Then p-toluenesulfonic acid 0.14 mmol,Then 5 mL of DMF was added thereto,The glass rod is stirred to dissolve it.2)The round bottom flask was placed in a microwave reactor,360W under irradiation once every 30s,Irradiation duration of 3.5min.After irradiation,cool down.3)Pour it into a crushed beaker,With potassium carbonate and potassium hydroxide pH = 7,Placed overnight,filter,Washed,dry,The crude product of 3- (3-methylphenyl) -6-ferrocenylmethylene-1,2,4-triazolo [3.4-b] -1,3,4-thiadiazole was obtained,Using a solvent of DMF and absolute ethanol in a volume ratio of 2: 1 mixed solvent,The crude product was recrystallized,That is, a brown solid,The yield is 85%

Chemical properties determine the actual use. Each compound has specific chemical properties and uses. We look forward to more synthetic routes in the future to expand reaction routes of Ferrocenylacetic acid, 1287-16-7

Reference£º
Patent; Shaanxi University of Science and Technology; Liu, Yuting; Song, Simeng; Yin, Dawei; Jiang, Shanshan; Liu, Beibei; Yang, Aning; Wang, Jinyu; Lyu, Bo; (13 pag.)CN104231004; (2017); B;,
Iron Catalysis in Organic Synthesis | Chemical Reviews
Iron Catalysis in Organic Synthesis: A Critical Assessment of What It Takes To Make This Base Metal a Multitasking Champion

As a common heterocyclic compound, it belongs to iron-catalyst compound, name is Ferrocenecarboxaldehyde, and cas is 12093-10-6, its synthesis route is as follows.

General procedure: The ferrocenecarboxaldehyde (2.0mmol) and the acetyl pyridine or amino acetophenone derivatives (2.0mmol) were added to a round bottom flask at rt. Then, a freshly prepared NaOH solution (0.5mmol in 1.0 mL each of H2O and EtOH) was added dropwise and left stirring at rt. When completed, the resulting product was filtered at reduced pressure, washing with cold water. The crude product was then recrystallized as described. Compound 2a: 3-ferrocenyl-1-(2-pyridinyl) prop-2-en-1-one was obtained as dark violet crystals after recrystallization using acetone:H2O mixture. Yield: 0.41g (64%) of pure product. 1H NMR (500MHz, CDCl3): delta=8.73 (s, 1H), 8.18 (d, J=7Hz, 1H), 7.89 (s, 1H), 7.86 (d, J=4Hz, 2H), 7.46 (s, 1H), 4.67 (s, 2H), 4.49 (s, 2H), 4.18 (s, 5H). 13C NMR (125MHz, CDCl3): delta=188.5, 154.7, 148.8, 147.2, 137.0, 126.5, 122.9, 117.8, 79.5, 71.5, 69.9, 69.5. FT-IR (neat) numax (cm-1): 1659 (m), 1591 (m), 1574 (w), 1462 (w), 1396 (m).

12093-10-6, In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles.,12093-10-6 ,Ferrocenecarboxaldehyde, other downstream synthetic routes, hurry up and to see

Reference£º
Article; Delgado-Rivera, Sara M.; Perez-Ortiz, Giovanny E.; Molina-Villarino, Andres; Morales-Fontan, Fabiel; Garcia-Santos, Lyannis M.; Gonzalez-Albo, Alma M.; Guadalupe, Ana R.; Montes-Gonzalez, Ingrid; Inorganica Chimica Acta; vol. 468; (2017); p. 245 – 251;,
Iron Catalysis in Organic Synthesis | Chemical Reviews
Iron Catalysis in Organic Synthesis: A Critical Assessment of What It Takes To Make This Base Metal a Multitasking Champion

Name is Vinylferrocene, as a common heterocyclic compound, it belongs to iron-catalyst compound, and cas is 1271-51-8, its synthesis route is as follows.

A mixture of vinylferrocene (1 mmol), K2CO3 (2.5or 5 mmol), tetrabutylammonium tetrafluoroborat (2.5 or 5 mmol),the given amount of appropriate bromine-substituted compoundand catalytic amount of Pd(OAC)2 in 10 ml DMF was stirred at 80 ¡ãCunder argon atmosphere overnight. After the completion of thereaction, the cooled mixture was filtered, diluted with CH2Cl2(50 ml) and washed with H2O (3 x 50 ml). The organic phase was dried over Na2SO4, filtered and the solvent was removed under thereduce pressure. The crude products were purified by columnchromatography on silica gel with hexane/EtOAC as eluent. Specificdetails for each compound are given below.

1271-51-8, In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles.,1271-51-8 ,Vinylferrocene, other downstream synthetic routes, hurry up and to see

Reference£º
Article; Teimuri-Mofrad, Reza; Rahimpour, Keshvar; Ghadari, Rahim; Journal of Organometallic Chemistry; vol. 846; (2017); p. 397 – 406;,
Iron Catalysis in Organic Synthesis | Chemical Reviews
Iron Catalysis in Organic Synthesis: A Critical Assessment of What It Takes To Make This Base Metal a Multitasking Champion

As a common heterocyclic compound, it belongs to iron-catalyst compound, name is Ferrocenecarboxaldehyde, and cas is 12093-10-6, its synthesis route is as follows.

General preparation of ferrocenyl chalcones: Ferrocene carboxaldehyde (1 eq) and the appropriate 2-hydroxyacetophenone (1 eq) were dissolved in absolute ethanol (40 ml.) in a 100 ml. two necked round bottom flask. After stirring the mixture 10 to 15 min. at room temperature, sodium hydroxide (3 eq) was added, and the solution was stirred overnight at room temperature, or 2-3h at reflux. The mixture was poured into water (100 ml.) and hydrochloric acid (12 M, 15 ml_), extracted with dichloromethane (3 x 50 ml_), and washed with water. The organic phase was dried over magnesium sulfate, filtered, and the solvent removed by evaporation. The product was purified by silica gel chromatography, using a mixture of petroleum ether/dichloromethane 4:1 as an eluent, and again using HPLC in acetonitrile/water (90:10). After HPLC purification, the acetonitrile was removed under reduced pressure and the aqueous phase extracted with dichloromethane.

12093-10-6, In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles.,12093-10-6 ,Ferrocenecarboxaldehyde, other downstream synthetic routes, hurry up and to see

Reference£º
Patent; CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS); HILLARD, Elizabeth; CHABOT, Guy; MONSERRAT, Jean-Philippe; JAOUEN, Gerard; TIWARI, Keshri Nath; DE MONTIGNY, Frederic; NEAMATI, Nouri; WO2011/107572; (2011); A1;,
Iron Catalysis in Organic Synthesis | Chemical Reviews
Iron Catalysis in Organic Synthesis: A Critical Assessment of What It Takes To Make This Base Metal a Multitasking Champion

1273-82-1, In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. Aminoferrocene, cas is 1273-82-1,the iron-catalyst compound, it is a common compound, a new synthetic route is introduced below.

A solution of 300 mg (1.49 mmol) of the amine ferrocene obtained in Preparation Example 1,380 mg (1.64 mmol) of 4-bromobiphenyl (4-bromobiphenyl)17 mg (0.075 mmol) of palladium acetate [Pd (OAc) 2]67 mg (0.12 mmol) of 1,1′-bis (diphenylphosphino) ferrocene (dppf) and 577 mg (6 mmol) of sodium tert-butoxide (NaOtBu)And with 5 mL of toluene as solvent,The reaction was carried out at 90 C for 72 hours,And then into the pure water,Extracted with 60 mL of ether 5 times,The resulting organic layer was washed with anhydrous magnesium sulfate and the solvent was removed,Purification by column chromatography [3: 2 (v / v) n-hexane and ethyl acetate]That is, the orange compound BPAFc is obtained(Yield 68%The structure is shown in Reaction Scheme II).

Chemical properties determine the actual use. Each compound has specific chemical properties and uses. We look forward to more synthetic routes in the future to expand reaction routes of Aminoferrocene, 1273-82-1

Reference£º
Patent; Zheng, Jianhong; Lai, Zhenchang; Zhang, Yuwei; Liao, Chunyi; Huang, Minjie; (31 pag.)CN106317129; (2017); A;,
Iron Catalysis in Organic Synthesis | Chemical Reviews
Iron Catalysis in Organic Synthesis: A Critical Assessment of What It Takes To Make This Base Metal a Multitasking Champion

1293-65-8, In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 1,1′-Dibromoferrocene, cas is 1293-65-8,the iron-catalyst compound, it is a common compound, a new synthetic route is introduced below.

A) Preparation of Intermediates; EXAMPLE A1; Preparation of (Rc,SFc,SP)-1-[2-(1-dimethylaminoethyl)ferrocen-1-yl]phenylphosphino-1′-bromoferrocene of the formula (A1) [Ph=phenyl; Me=methyl]; a) Preparation of 1-phenylchlorophosphino-1′-bromoferrocene (X1); 14.5 ml (23.2 mmol) of n-BuLi (1.6 M in hexane) are added dropwise to a solution of 8 g (23.2 mmol) of 1,1′-dibromoferrocene in 30 ml of THF at a temperature of <-30 C. The mixture is stirred for another 30 minutes at this temperature. It is then cooled to -78 C. and 3.15 ml (23.2 mmol) of phenyldichlorophosphine are added dropwise at such a rate that the temperature does not exceed -60 C. After stirring at -78 C. for a further 10 minutes, the temperature is allowed to rise to room temperature and the mixture is stirred for another one hour. This gives a suspension of the monochlorophosphine X1.; b) Preparation of 1-bromo-1'-lithioferrocene X5; 4 ml (10 mmol) of n-BuLi (2.5 M in hexane) are added dropwise to a solution of 3.43 g (10 mmol) of 1,1'-dibromoferrocene in 10 ml of tetrahydrofuran (THF) at a temperature of <-30 C. The mixture is stirred at this temperature for another 1.5 hours and subsequently cooled to -78 C. This gives a suspension of 1-bromo-1'-lithioferrocene X5.; Reaction mixture b): In a second reaction flask, 4.0 ml (10 mmol) of n-BuLi (2.5 M in hexane) are added dropwise to a solution of 3.43 g (10 mmol) of 1,1'-dibromo-ferrocene in 10 ml of THF which has cooled to -30 C. at such a rate that the temperature does not exceed -30 C. The mixture is subsequently stirred at -30 C. for a further 1.5 hours and the mixture containing the 1-bromo-1'-lithioferrocene is finally cooled to -78 C. The chemical industry reduces the impact on the environment during synthesis,1293-65-8,1,1'-Dibromoferrocene,I believe this compound will play a more active role in future production and life. Reference£º
Patent; Chen, Weiping; Spindler, Felix; Nettekoven, Ulrike; Pugin, Benoit; US2010/160660; (2010); A1;,
Iron Catalysis in Organic Synthesis | Chemical Reviews
Iron Catalysis in Organic Synthesis: A Critical Assessment of What It Takes To Make This Base Metal a Multitasking Champion

As a common heterocyclic compound, it belongs to iron-catalyst compound, name is Aminoferrocene, and cas is 1273-82-1, its synthesis route is as follows.

The reaction step and the conditions of the step (2) are the same as those of the above step (1)The difference is that,4′-bromo-N, N-diphenylbiphenyl-4-amine was increased to 7.90 g (19.7 mmol)And purified by column chromatography,Need to be sublimated twice,To obtain a red compound Fc02 solid (yield 40%). A mixture of 300 mg (1.5 mmol) of the amine ferrocene obtained in Preparation Example 1, 1.8 g (4.5 mmol) of 4′-bromo-N, N-diphenylbiphenyl-4-amine (4′-bromo- -diphenylbiphenyl-4-amine),17 mg (0.075 mmol) of palladium acetate [Pd (OAc) 2]0.1 mL of a 10 wt% tributylphosphine n-hexane solution and 1.13 g (11.8 mmol) of sodium tert-butoxide(NaOtBu)And with 6 mL of toluene as solvent,After reacting at 130 C for 72 hours,The palladium catalyst was first removed by filtration through diatomaceous earth and silica gel,And rinsed with ethyl acetate to remove the solvent,And finally purified by column chromatography [4: 1 to 3: 2 (v / v) n-hexane and ethyl acetate gradient stripping system]To obtain the compound DPABPAFc (yield 50%The structure is shown in Reaction Scheme III).

1273-82-1, In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles.,1273-82-1 ,Aminoferrocene, other downstream synthetic routes, hurry up and to see

Reference£º
Patent; Zheng, Jianhong; Lai, Zhenchang; Zhang, Yuwei; Liao, Chunyi; Huang, Minjie; (31 pag.)CN106317129; (2017); A;,
Iron Catalysis in Organic Synthesis | Chemical Reviews
Iron Catalysis in Organic Synthesis: A Critical Assessment of What It Takes To Make This Base Metal a Multitasking Champion

1273-82-1, In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. Aminoferrocene, cas is 1273-82-1,the iron-catalyst compound, it is a common compound, a new synthetic route is introduced below.

This amino-ferrocene (1.07 g, 5.32 mmol) was dissolved in acetic acid (15 ml.) under nitrogen and paraformaldehyde (1.59 g, 53.2 mmol) and NaBH3CN (1.67 g, 26.6 mmol) was added and the reaction mixture was stirred for 16 h. Aqueous NaOH 6 M was added until pH = 12 and the solution was extracted by hexane (3 x 20 ml_). The combined organic phase was washed with brine, dried with Na2S04 and the solvent was removed under vacuum until approximately 5% of the initial volume. The residue was subjected to quick filtration through a pad of silica gel eluting with hexane. The solvent was removed under vacuum not to complete dryness so as the pure product crystallized in the freezer as orange flakes; mp 69- 70 C; NMR (CDCI3, ppm): 1H (500 MHz) 4.25, 3.95, 3.76, 2.59; 13C (126 MHz) 155.80, 66.50, 63.07, 54.61 , 41.50.

The chemical industry reduces the impact on the environment during synthesis,1273-82-1,Aminoferrocene,I believe this compound will play a more active role in future production and life.

Reference£º
Patent; NATIONAL CENTRE FOR SCIENTIFIC RESEARCH “DEMOKRITOS”; PELECANOU ZAMPARA, Maria; SAGNOU, Marina; PAPADOPOULOS, Minas; PIRMETTIS, Ioannis; MAVROIDI, Barbara; SHEGANI, Antonio; (38 pag.)WO2019/180200; (2019); A1;,
Iron Catalysis in Organic Synthesis | Chemical Reviews
Iron Catalysis in Organic Synthesis: A Critical Assessment of What It Takes To Make This Base Metal a Multitasking Champion

1271-42-7, In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. Ferrocenecarboxylic acid, cas is 1271-42-7,the iron-catalyst compound, it is a common compound, a new synthetic route is introduced below.

Ferrocene carboxylic acid (2.0 g, 8.7 mmol) were dissolved in CH3CN (5 mL) and the solution was degassed with argon. To this solution, N-hydroxysuccinimide (1.0 g, 8.7 mmol) and 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (1.7 g, 8.7 mmol) were added, and the solution was stirred overnight at room temperature. After the removal of the solvent, the reaction mixture was purified by silica gel column chromatography (CH2Cl2) to give 2(6.6 mmol, 76 %).

Chemical properties determine the actual use. Each compound has specific chemical properties and uses. We look forward to more synthetic routes in the future to expand reaction routes of Ferrocenecarboxylic acid, 1271-42-7

Reference£º
Article; Takada, Tadao; Tochi, Takaaki; Nakamura, Mitsunobu; Yamana, Kazushige; Bioorganic and Medicinal Chemistry Letters; vol. 24; 12; (2014); p. 2661 – 2663;,
Iron Catalysis in Organic Synthesis | Chemical Reviews
Iron Catalysis in Organic Synthesis: A Critical Assessment of What It Takes To Make This Base Metal a Multitasking Champion