ACETAL CHLORINATION WITH MNO2-TRIMETHYLCHLOROSILANE

被引:20
作者
BELLESIA, F [1 ]
BONI, M [1 ]
GHELFI, F [1 ]
GRANDI, R [1 ]
PAGNONI, UM [1 ]
PINETTI, A [1 ]
机构
[1] UNIV MODENA,DIPARTIMENTO CHIM,I-41100 MODENA,ITALY
关键词
ACETALS; ALDEHYDES; CHLORINATION; MANGANESE(IV)OXIDE; TRIMETHYLCHLOROSILANE; LIGAND-TRANSFER;
D O I
10.1016/S0040-4020(01)81231-X
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
alpha-Chloroacetals am obtained in almost quantitative yields, by treating acetals with MnO2-trimethylchlorosilane in CH3OH:CH3CN (1:1). The halogenation is explained by a ligand-transfer process on an enolether intermediate, mediated by a Mn(IV)-chloride species.
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页码:4579 / 4586
页数:8
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