TIN(II) CHLORIDE DIHYDRATE - A MILD AND EFFICIENT REAGENT FOR CLEAVING ACETALS

被引:33
作者
FORD, KL [1 ]
ROSKAMP, EJ [1 ]
机构
[1] NORTHWESTERN UNIV,DEPT CHEM,EVANSTON,IL 60208
关键词
TIN(II) CHLORIDE DIHYDRATE; LEWIS ACID; DEPROTECTION OF ACETALS;
D O I
10.1016/S0040-4039(00)91878-1
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Tin(II) chloride dihydrate (SnCl2.2H2O) efficiently converts conjugated dioxolanes, and both dimethoxy and diethoxy acetals to aldehydes (84-98%). Similarly, nonconjugated dimethoxy and diethoxy acetals are also efficiently converted to aldehydes (84-94%). Conjugated pyrans and nonconjugated dioxolanes, however, are only converted to aldehydes in 17-38% yields.
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页码:1135 / 1138
页数:4
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