Efficient synthesis of dissymmetric malonic acid S, O -esters via monoalcoholysis of symmetric dithiomalonates under neutral conditions
A novel method for the highly selective synthesis of dissymmetric S,O-malonates starting from symmetric diphenyl dithiomalonates under neutral conditions is described. The key step is the thermal formation of an acylketene, the stability of which would co
Matsuo, Kazumasa,Shindo, Mitsuru
supporting information; experimental part
p. 4406 - 4409
(2011/10/08)
A CONVENIENT ONE-POT PROCEDURE FOR SYNTHESIS OF THIOL ESTERS USING MAGNESIUM ION AS A CATALYST
Various thiol esters (R1COSR2) 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 1OCOCH(R3)COSR2> were also prepared in good yields by treating magnesium monoalkyl malonate 1OCOCH(R3)COOMg0.5> with carbonyl-1,1'-diimidazole followed by addition of thiols.
Ohta, Shunsaku,Okamoto, Masao
p. 3245 - 3246
(2007/10/02)
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