Catalyst-Dependent Selective Synthesis of O/S-and S/S-Acetals from Enol Ethers

AL Braga, CC Silveira, L Dornelles, G Zeni…

文献索引：Braga; Silveira; Dornelles; Zeni; Galarza; Wessjohann Synthetic Communications, 1995 , vol. 25, # 20 p. 3155 - 3162

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被引用次数: 4

摘要

S/S-Acetals') are well established as protected forms of keto groups as well as acyl anion equivalent^^-^). Less common but increasingly important in organic syntheses are O/S-acetal~~".~.~). S/S-Acetals are usually prepared from the correspondmg aldehydes or ketones274), whereas O/S-acetals are usually obtained from O/O-acetals? Other methods are often not general or ... Table 1: Selective Formation of OiS-Acetals with Thiophenol