A Mild and Chemoselective Catalyst for Thioacetalization Under Solvent Free Conditions
摘要:
Protection of a variety of carbonyl compounds as dithioacetals using P2O5/SiO2 (75%), as a mild and chemoselective catalyst, was achieved under solvent free conditions in very good yields.
carbonyl group, cyano group) in an alkyl halide facilitates its cross-coupling reaction with various diorganozincs in the presence of Ni(acac)(2) (7.5-10 mol % in THF/NMP mixtures). These results were used to develop a new general cross-coupling reaction between functionalized diorganozincs and alkyliodides using m- or p-trifluoromethylstyrene as a reaction promotor and Ni(acac)(2) as a catalyst (7.5-10
An efficient, mild and chemoselective method for the deprotection of S,S-acetal compounds to their corresponding carbonyl compounds using silicasulfuric acid/NaNO3 is reported.
A Mild and Chemoselective Catalyst for Thioacetalization Under Solvent Free Conditions
作者:Abdol R. Hajipour、Amin Zarei、Leila Khazdooz、Saeed Zahmatkesh、Arnold E. Ruoho
DOI:10.1080/104265091000877
日期:2006.2
Protection of a variety of carbonyl compounds as dithioacetals using P2O5/SiO2 (75%), as a mild and chemoselective catalyst, was achieved under solvent free conditions in very good yields.