Day: October 19, 2020

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.1271-51-8,Vinylferrocene,as a common compound, the synthetic route is as follows.

Under argon, into a dried reactor were added successively vinyl ferrocene (1mol, 212g), (R ) -3,3′-bis (3,5-dimethylphenyl) -1,1 ‘ – binaphthol phosphonate (0.01mol, 5.6g) and 1L of toluene, followed by addition of di-tert-butylphosphine (1mol, 147g), heated to 60 deg.] C for 12 hours, then cooled cooling, water was added dropwise to the system, and then liquid separation, the organic layer was dried over anhydrous magnesium sulfate, filtered, and the solvent evaporated under reduced pressure to give a yellow solid which was recrystallized from dichloromethane and methanol to give (R) -1- ferrocenyl ethyl-di-tert-butylphosphine 347g yield 97percent, ee value of 99.5percent.

1271-51-8, 1271-51-8 Vinylferrocene 16211828, airon-catalyst compound, is more and more widely used in various fields.

Reference£º
Patent; Institute of Chemistry, Henan Academy of Sciences; Chen, Hui; Yang, Ruina; Yang, Zhenqiang; Sun, Minqing; Duan, Zheng; Wang, Congyang; (5 pag.)CN105859800; (2016); 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

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.,1271-51-8

General procedure: As shown as the synthetic protocol A in Scheme 2, compounds 1-11 were synthesized following literature description [16] with m-methoxyphenol, p-methoxyphenol, resorcinol, and hydroquinone as reagents. One hydroxyl group in resorcinol and hydroquinone was protected by tert-butyldimethylsilyl chloride. Then, 17 mL of dry CHCl3 solution containing excess PhtNSCl was added dropwisely to 8 mL of dry CHCl3 solution containing monoprotected hydroquinone or resorcinol and stirred for 16 h at 0 ¡ãC until phenols cannot be detected by thin layer chromatography (TLC). The mixture was diluted with CH2Cl2 and washed by saturated NaHCO3 and water. The organic phase was dried over anhydrous Na2SO4, and the solvent was removed under vacuum. The residue was purified by column chromatography with CH2Cl2 as the eluent to afford thiophthalimides as colorless solid. The following cycloaddition reactions were carried out in dry CHCl3 solution of thiophthalimides (~ 0.1 M) and styrenes (2 equiv.) or vinyl ferrocene (2 equiv.) and freshly distilled (C2H5)3N (2 equiv.) at 60 ¡ãC. The reaction was finished with thiophthalimides not detected by TLC. Then, the solvent was evaporated under vacuum pressure, and the residual solid was purified with column chromatography to afford silylated adducts. The desilylation operation was performed in dry tetrahydrofuran (THF) solution containing 0.04 M aforementioned adducts at 0 ¡ãC, to which a solution of (n-C4H9)4NF*3H2O in THF (1 equiv. for each protective group) was added. The reaction was finished with the reagent not detected by TLC, and then the mixture was diluted with ethyl acetate and washed with saturated NH4Cl and water. The organic layer was dried over anhydrous Na2SO4, and the solvent was evaporated under vacuum pressure. The residue was purified with column chromatography to afford thiaflavans.

With the complex challenges of chemical substances, we look forward to future research findings about Vinylferrocene

Reference£º
Article; Lai, Hai-Wang; Liu, Zai-Qun; European Journal of Medicinal Chemistry; vol. 81; (2014); p. 227 – 236;,
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

Iron(III) acetylacetonate, cas is 14024-18-1, it is a common heterocyclic compound, the iron-catalyst compound, its synthesis route is as follows.,14024-18-1

Synthesis of ferrimagnetic nanocubes ( Fe3O4 ) was carried out under nitrogen (N 2).Typical synthesis of mangnetic nanocubes ( 0.71g,2 mmol ) Iron ( III ) acetylacetonate (Fe(acac)3) mixed with ( 0.41 g,2.1 mmol ) 4-biphenylacarboxylic acid added to mixture ( 1.129 g , 4 mmol ) oleic acid and ( 10.40 g ,10 ml ) benzyl ether . The mixture solution was degassed at room temperature for 1 hour .The solution was then heated to 290C at the rate of 20C /min with vigorous magnetic stirring at 290 rpm to get ferrimagnetic nanocubes. where the temperature was held for 30 min when temperature reached 290C . After cooling the solution to room temperature , a mixture of ( 40 ml ) toluene and ( 10 ml ) hexane was added to solution . The solution was then centrifuged at 5000 rpm for minutes to precipitate the magnetite nanocubes .The precipitate was washed using ( 10 ml ) chloroform ( CHCl3 ) . Then after that used oven vacuum to obtain Fe3O4 nanocubes in powder form at 80C temperature14- 18.

14024-18-1 is used more and more widely, we look forward to future research findings about Iron(III) acetylacetonate

Reference£º
Article; Alkadasi, Nabil Abdullah Noman; Oriental Journal of Chemistry; vol. 30; 3; (2014); p. 1179 – 1182;,
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 quinuclidine compound,Quinuclidine-4-carboxylic acid hydrochloride,40117-63-3,Molecular formula: C8H14ClNO476,mainly used in chemical industry, its synthesis route is as follows.,1273-86-5

General procedure: To a solution of ferrocenyl alcohol 1 or 2 (2.0 mmol) and correspondingmercapto derivative in dry MeNO2 (5 mL) CAN (22 mg,0.04 mmol, 0.2 mol%) was added. The resulting mixture was stirredat room temperature until TLC analysis revealed complete disappearanceof starting alcohol 1 or 2 (usually 3-4 h). Then reactionmixture was poured onto a water (40 mL), organic layer was separated,the aqueous phase was extracted with EtOAc (2 10 mL),and the combined organic solution was dried over Na2SO4, filteredand the solvents were evaporated in vacuo. The remained productwas treated with CH2Cl2 (50 ml) and passed through a silica gellayer (2.5 cm) on the filter to give corresponding products 5-9,11 after the evaporation of volatiles at reduced pressure.

With the synthetic route has been constantly updated, we look forward to future research findings about Ferrocenemethanol,belong iron-catalyst compound

Reference£º
Article; Ol’shevskaya, Valentina A.; Makarenkov, Anton V.; Borisov, Yury A.; Ananyev, Ivan V.; Kononova, Elena G.; Kalinin, Valery N.; Ponomaryov, Andrey B.; Polyhedron; vol. 141; (2018); p. 181 – 190;,
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 Acetylferrocene, as a common heterocyclic compound, it belongs to iron-catalyst compound, and cas is 1271-55-2, its synthesis route is as follows.,1271-55-2

General procedure: To a solution of acetyl ferrocene (0.34 g, 2.5 mmol) and correspondingactive aldehyde (2.5 mmol) in dry ethanol (20 ml) takenin a beaker (100 ml), a catalytic quantity of potassium hydroxide(0.05 g, 1.25 mmol)was added and the reaction mixturewas heatedinside a microwave oven for 54e68 s (at 210W, i.e. ~30% microwavepower) [25]. After complete the reaction mixture was cooled in anice bath and the product thus formed were filtered, washed withethanol followed by washing with water till the washings wereneutral and recrystallized from distilled ethanol and chloroform(Scheme 1 and Table 1).

With the complex challenges of chemical substances, we look forward to future research findings about Acetylferrocene

Reference£º
Article; Khan, Salman A.; Asiri, Abdullah M.; Al-Ghamdi, Najat Saeed M.; Zayed, Mohie E.M.; Sharma, Kamlesh; Parveen, Humaira; Journal of Molecular Structure; vol. 1139; (2017); p. 137 – 148;,
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 belong iron-catalyst compound,Ferrocenemethanol,1273-86-5,Molecular formula: C11H3FeO,mainly used in chemical industry, its synthesis route is as follows.,1273-86-5

General procedure: To a mixture of 1.0 mmol of ferrocenylcarbinol and 1.0 mmol of the corresponding heterocycle in 1.0 ml of methylene dichloride, 0.18 ml of 45% aqueous solution of fluoroboric acid was added under vigorous stirring. The agitation was continued for 5 min then Et2O (15 ml), the same amount of cold water, and 5-10 mg of ascorbic acid were added to the reaction flask. After vigorous shaking of the mixture the organic solution was separated, washed with cold water (5 15 ml), the solvent was removed and the residue was dried over CaCl2. 3-Ferrocenylmethylbenzo[d]thiazole-2(3H)-thione (5a) Yield 47%. Dark brown crystals, m.p. 134-135 C. Anal.: ? 59.27; ? 4.09; N 3.80; S 17.50%. Calc. for ?18?15FeNS2: ? 59.18; ? 4.14; N 3.83; S 17.56%. EI/MS, m/z (RI%): 365 [M]+ (78). 1? NMR (CDCl3, delta, ppm): 4.12 (s, 2H, Fc), 4.24 (s, 5H, Fc), 4.51 (s, 2H, Fc), 5.44 (s, 2H, CH2), 7.32-7.42 (m, 4H, Het). 13C NMR (CDCl3, delta, ppm): 45.5 (CH2), 68.4 (C5H4), 69.0 (C5H5), 69.9 (C5H4), 81.2 (ipso-C5H4), 112.8 (C-4, Het), 121.3 (C-7, Het), 124.7 (C-6, Het), 126.8 (C-5, Het), 127.6 (C-8, Het), 141.3 (C-9, Het), 189.1 (C=S).

With the synthetic route has been constantly updated, we look forward to future research findings about Ferrocenemethanol,belong iron-catalyst compound

Reference£º
Article; Rodionov, Alexey N.; Zherebker, Kira Ya.; Snegur, Lubov V.; Korlyukov, Alexander A.; Arhipov, Dmitry E.; Peregudov, Alexander S.; Ilyin, Mikhail M.; Nikitin, Oleg M.; Morozova, Nataliya B.; Simenel, Alexander A.; Journal of Organometallic Chemistry; vol. 783; (2015); p. 83 – 91;,
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 belong iron-catalyst compound,Iron(III) acetylacetonate,14024-18-1,Molecular formula: C15H21FeO6,mainly used in chemical industry, its synthesis route is as follows.,14024-18-1

Fe(acac)3 (3 mmol) was dissolved in 20 ml of oleylamine and 5 ml of n-hexane. The reaction mixture was thoroughly stirred under N2 atmosphere for 30 min in a 50 ml Teflon-lined stainless steel autoclave that was carefully sealed. The autoclave was heated in a furnace at 190 C for 8 h under autogenous pressure. The resulting dark suspensions were extracted by adding 50 ml of ethanol followed by centrifugation. After washing the precipitates three times with ethanol, uniform Fe3O4 NPs were formed. These NPs were redispersed into n-hexane and a black-brown n-hexane dispersion of Fe3O4 NPs was thus obtained. Thus, the Fe3O4 suspension was transferred to 100 ml volumetric flask, evenly mixed with n-hexane for measurement of concentration of Fe3O4 through the 1,10-phenanthroline monohydrate dyeing method using UV-Vis spectrophotometer. Similar procedures for the preparation of Fe3O4 NPs were carried out at different conditions, including different reaction temperatures, times, and solvents. The solvothermal temperatures for samples S1 and S3 differed from that for S2. For samples S4-S6, the reaction times differed from that of S2. For samples S7-S9, the content of n-hexane differed from that of sample S2. The detailed preparation conditions are listed in Table 1 .

With the synthetic route has been constantly updated, we look forward to future research findings about Iron(III) acetylacetonate,belong iron-catalyst compound

Reference£º
Article; Liu, Jing; Wang, Lu; Wang, Jing; Zhang, Lantong; Materials Research Bulletin; vol. 48; 2; (2013); p. 416 – 421;,
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

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.1271-51-8,Vinylferrocene,as a common compound, the synthetic route is as follows.

General procedure: A deoxygenated mixture of vinylferrocene (170mg, 0.80mmol), K2CO3 (1.50g, 11mmol), tetrabutylammonium bromide (1.19g, 3.70mmol), bromochromone (0.66mmol) and Pd(OAc)2 (20mg, 0.09mmol) in DMF (23ml) was heated at 95¡ãC for 19h. After cooling to r. t. the reaction mixture was evaporated to dryness. Solid residue was dissolved in chloroform and extracted several times with water. The organic phase was dried with MgSO4, filtered and the solvent was removed from the filtrate in vacuo. The residue was subjected to chromatography on SiO2 (eluent: CHCl3/methanol, 50:2). Finally the analytically pure products were obtained after recrystallization from chloroform/n-hexane mixture.

1271-51-8, The synthetic route of 1271-51-8 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Kowalski, Konrad; Koceva-Chy, Aneta; Szczupak, Lukasz; Hikisz, Pawel; Bernasin?ska, Joanna; Rajnisz, Aleksandra; Solecka, Jolanta; Therrien, Bruno; Journal of Organometallic Chemistry; vol. 741-742; 1; (2013); p. 153 – 161;,
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 Ferrocenemethanol, and cas is 1273-86-5, its synthesis route is as follows.,1273-86-5

General procedure: To a solution of ferrocenyl alcohol 1 or 2 (2.0 mmol) and correspondingmercapto derivative in dry MeNO2 (5 mL) CAN (22 mg,0.04 mmol, 0.2 mol%) was added. The resulting mixture was stirredat room temperature until TLC analysis revealed complete disappearanceof starting alcohol 1 or 2 (usually 3-4 h). Then reactionmixture was poured onto a water (40 mL), organic layer was separated,the aqueous phase was extracted with EtOAc (2 10 mL),and the combined organic solution was dried over Na2SO4, filteredand the solvents were evaporated in vacuo. The remained productwas treated with CH2Cl2 (50 ml) and passed through a silica gellayer (2.5 cm) on the filter to give corresponding products 5-9,11 after the evaporation of volatiles at reduced pressure.

With the complex challenges of chemical substances, we look forward to future research findings about 1273-86-5,belong iron-catalyst compound

Reference£º
Article; Ol’shevskaya, Valentina A.; Makarenkov, Anton V.; Borisov, Yury A.; Ananyev, Ivan V.; Kononova, Elena G.; Kalinin, Valery N.; Ponomaryov, Andrey B.; Polyhedron; vol. 141; (2018); p. 181 – 190;,
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

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.1271-51-8,Vinylferrocene,as a common compound, the synthetic route is as follows.

Add 1t (0.2 mmol, 42mg) of vinyl ferrocene, 2a (0.2 mmol, 29 muL), toluene (1 mL), and Cp to the reaction tube in this order.2ZrH2(0.01 mmol, 2.3 mg). Stir the reaction at room temperature under a nitrogen (1 atm) atmosphere.GC detection until the reaction is complete.Filter through celite, spin dry the solvent under reduced pressure, and purify the residue by silica gel column chromatography. Use petroleum ether: ethyl acetate (40 mL: 1 mL) as the eluent to obtain ferrocene vinyl boric acid as a yellow oil Pinacol ester 3t (63mg, 80%).

1271-51-8, 1271-51-8 Vinylferrocene 16211828, airon-catalyst compound, is more and more widely used in various fields.

Reference£º
Patent; Chinese Academy Of Sciences Lanzhou Chemical Physics Institute; Wu Lipeng; Shi Xiaonan; (17 pag.)CN110483561; (2019); 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