Acid??Promoted Thioacetalization in Water using 2??(1, 3??Dithian??2??ylidene) malonic Acid as an Odorless and Efficient Thioacetalization Reagent

Y Ouyang, D Dong, Y Liang, Y Chai…

Index: Ouyang, Yan; Dong, Dewen; Liang, Yongjiu; Chai, Yanyan; Liu, Qun Synthetic Communications, 2007 , vol. 37, # 6 p. 993 - 1000

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Abstract

Abstract Thioacetalization using 2??(1, 3??dithian??2??ylidene) malonic acid 1 as a nonthiolic, odorless 1, 3??propanedithiol equivalent promoted by p??dodecylbenzenesulfonic acid in water has been achieved. A range of selected carbonyl compounds 2 was converted into the corresponding dithioacetals 3 in high yields. Moreover, the thioacetalization showed high chemoselectivity between aldehydes and ketones.

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