Simple, Short and Efficient Procedure for the Preparation of Hydroxyl- and Hydroxymethyl-Substituted 2,6-Dichlorobenzaldehydes
作者:Thomas von Hirschheydt、Edgar Voss
DOI:10.1055/s-2004-829154
日期:——
Hydroxyl- and hydroxymethyl-substituted 2,6-dichlorobenzaldehydes 1-4 have been obtained by lithiation of the corresponding TIPS-protected dichlorophenols or dichlorobenzylic alcohols followed by reaction with DMF and subsequent deprotection of the hydroxy group. Yields are high and formation of regioisomers is not observed.
氢氧基和羟甲基取代的2,6-二氯苯甲醛1-4是通过对相应的TIPS保护的二氯酚或二氯苄醇进行锂化反应后,与DMF反应,并随后的羟基去保护得到的。产率高,未观察到区域异构体的形成。