Catalyzed Selective Direct α??and γ??Alkylation of Aldehydes with Cyclic Benzyl Ethers by Using T+ BF4− in the Presence of an Inexpensive Organic Acid or Anhydride

…, R Rohlmann, O García Mancheño

文献索引：Richter, Heinrich; Rohlmann, Renate; Garcia Mancheno, Olga Chemistry - A European Journal, 2011 , vol. 17, # 41 p. 11622 - 11627

全文：HTML全文

被引用次数: 52

摘要

Abstract The cross dehydrogenative coupling (CDC) of cyclic benzyl ethers with aliphatic and α, β-unsaturated aldehydes has been developed. The mild reaction conditions, in which an N-oxoammonium salt derived from TEMPO (2, 2, 6, 6-tetramethyl-1-piperidinoxyl) is employed as the oxidant in combination with a Cu catalyst, allow the use of relatively redox- unstable aldehydes under oxidative CDC conditions. The addition of a catalytic amount of ...