Synthesis of Diruthenium Complexes Containing Chiral Thiolate-Bridged Ligands and Their Application to Catalytic Propargylic Alkylation of Propargylic Alcohols with Acetone
摘要:
Novel diruthenium complexes containing chiral thiolate-bridged ligands are synthesized and characterized crystallographically. The chiral diruthenium complexes promote enantioselective propargylic alkylation of propargylic, alcohols with acetone to give the corresponding propargylic alkylated products in good yields with moderate enantioselectivities (up to 35% ee).
One pot conversion of alcohols to disulfides mediated by benzyltriethylammonium tetrathiomolybdate
作者:Surajit Sinha、P. Ilankumaran、S. Chandrasekaran
DOI:10.1016/s0040-4020(99)00939-4
日期:1999.12
A one pot conversion of alcohols to disulfides in good yields via the activation of a hydroxyl group with DCC or P(NMe2)3 / CCl4 followed by treatment with benzyltriethylammonium tetrathiomolybdate is reported.