Relative migratory aptitudes of the methyl and ethyl groups in a. sigma. complex intermediate
RB Carlin, KP Sivaramakrishnan
Index: Carlin,R.B.; Sivaramakrishnan,K.P. Journal of Organic Chemistry, 1970 , vol. 35, p. 3368 - 3372
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Citation Number: 11
Abstract
CH3 8 (<: 12%)+ unidentified ketonic material (< 30%) tion of 8 in the product mixture were accomplished by vpc, but its clean separation on a preparative scale could not be effected by convenient means, including fractional crystallization of the semicarbaxone mixture. No effort was made to identify the remaining 70% of the isolated product, which appeared as a single peak on the vpc trace, with a shorter retention time than that from 8. By contrast, the ...