Mode of decomposition of chloro- and fluoro-formates of some carbohydrates and related compounds
作者:N. Baggett、K.W. Buck、A.B. Foster、R. Jefferis、J.M. Webber
DOI:10.1016/s0008-6215(00)80188-3
日期:1967.6
established that thermal and catalytic decomposition of certain alkyl haloformates affords dialkyl carbonates in addition to alkyl halides. Pyridine(or quinoline)-catalysed decomposition of ethyl and cyclohexyl chloroformate and ethyl fluoroformate affords high yields of alkyl halides, but cyclohexyl fluoroformate yields a significant proportion of dialkyl carbonate. In compounds containing the structural unit
摘要已经确定,某些烷基卤甲酸酯的热催化分解除烷基卤化物外,还提供碳酸二烷基酯。吡啶(或喹啉)催化的氯甲酸乙酯和氯甲酸环己酯和氟代甲酸乙酯的分解可提供高产率的烷基卤化物,但氟代环己基酯可产生相当大比例的碳酸二烷基酯。在含有结构单元O·CC·O·CO·Hal的化合物中,氯甲酸酯会生成烷基氯和碳酸二烷基酯,而在氟甲酸酯中,碳酸二烷基酯是唯一的产物。已经检查了以下化合物的卤素形式:环己烷甲醇,2-(羟甲基)四氢吡喃,1,2:3,4-二-O-异亚丙基-α-D-半乳糖,1,2:3,4-二-O-异亚丙基-DL 0木糖醇和反式-2-甲氧基环己醇。