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DIRECTION OF ADDITION REACTIONS OF N-HALOGENOCARBAMATES TO CONJUGATED ALKENYNES
Labeish, N. N.,Porfir'eva, Yu. I.,Petrov, A. A.
, p. 430 - 436 (2007/10/02)
The addition of N-halogenocarbamates to conjugated alkenynes with various types of substitution was investigated.The reaction begins with attack by the carbamate radical on the terminal carbon atom of the double bond, and this leads to the formation of allene and acetylene final products.The ratio of the obtained isomers is affected by the nature of the halogen and by the nature of substitution in the enyne system.The addition of the N-bromocarbamate to diene hydrocarbons takes place with the formation of the thermodynamically more stable 1,4-isomer.
