Formation of 1,1-dihalogeno-4-methylpenta-1,4-dienes by reactionof isobutene with trihalogenoethylenes
作者:Warren Hewertson、David Holland、David J. Milner
DOI:10.1039/p29780001062
日期:——
Isobutene reacts with trihalogenoethylenes in the gas phase at ca. 500° to give 1,1-dihalogeno-4-methylpenta-1,4-dienes which are precursors of photostable pyrethroid insecticides. The reaction appears suited to large scale continuous operation. The results are interpreted in terms of a free-radical chain mechanism.