An Efficient Method for Thioacetalization of Carbonyl Compounds in the Presence of a Catalytic Amount of Benzyltriphenylphosphonium Tribromide Under Solvent-Free Conditions
作者:Abdol R. Hajipour、Seied A. Pourmousavi、Arnold E. Ruoho
DOI:10.1080/10426500601088739
日期:2007.3.15
variety of carbonylcompounds have been successfully converted to the corresponding thioacetal derivatives in good to excellent yields on the reaction of carbonylcompounds with 1,2-ethanedithiole, 1,3-propanedithiol, and ethanethiol in the presence of catalytic amount of benzyltriphenylphosphonium tribromide under solvent-free conditions. Some of the major advantages of this method are mild reaction conditions
Ethyl lactate mediated thioacetalization of aldehydes at ambient temperature
作者:Jie-Ping Wan、Yanfeng Jing、Yunyun Liu
DOI:10.1080/10426507.2016.1209504
日期:2016.10.2
GRAPHICAL ABSTRACT ABSTRACT Dithioacetalization reactions of aldehydes with thiols/thiophenols have been successfully achieved at room temperature by employing the green, bio-basedethyllactate as the reaction medium. By means of this sustainableapproach, a class of dithioacetals has been acquired with high diversity and efficiency.
Phosphorus pentoxide supported on silica gel (P2O5/SiO2) efficiently acts as a highly active and reusable catalyst for cyclic and non-cyclic S,S-acetalization of a variety of carbonyl compounds under mild, solvent-free and ambient conditions. This method offers significant advantages such as high conversion, clean work-up, short reaction times and simplicity in operation.[GRAPHICS].
Kukovitskii, D. M.; Zorin, V. V.; Zelechonok, Yu. B., Journal of Organic Chemistry USSR (English Translation), 1983, vol. 19, # 1, p. 132 - 136
作者:Kukovitskii, D. M.、Zorin, V. V.、Zelechonok, Yu. B.、Zlot-skii, S. S.、Rakhmankulov, D. L.、Todres, Z. V.
DOI:——
日期:——
Ali, Muhammad; Satchell, Derek P. N., Journal of the Chemical Society. Perkin transactions II, 1991, # 5, p. 575 - 578