A convenient one-pot procedure for synthesis of thiol esters using magnesium ion as a catalyst
作者:Shunsaku Ohta、Masao Okamoto
DOI:10.1016/s0040-4039(01)81874-8
日期:1981.1
Various thiol esters (R1 COSR2) were prepared in high yields by treatment of 1-acylimidazole with thiols in the presence of a catalytic amount of Mg(OEt)2. Malonic half-thiol esters [R1OCOCH(R3)COSR2] were also prepared in good yields by treating magnesium monoalkyl malonate [R1 OCOCH(R3)COOMg12] with carbonyl-1,1′-diimidazole followed by addition of thiols.
Eosin-Y/Cu(OAc)<sub>2</sub>-catalyzed aerobic oxidative coupling reactions of glycine esters in the dark
作者:Raghunath Chowdhury
DOI:10.1039/d2ob00678b
日期:——
Catalytic aerobic oxidativecouplingreactions of glycine esters with β-ketoacids, indoles, naphthols, and pyrrole have been realized at ambient temperature via the manipulation of the ground state reactivity of eosin-Y in the presence of Cu(OAc)2 in the dark. This method delivers structurally diverse unnatural amino acid derivatives under mild reaction conditions. UV-vis absorption spectroscopy,