. alpha.-Chloroalkenylalanates. Their preparation and conversion into (E)-1-chloro-1-alkenes and mixed 1, 1-dihalo-1-alkenes

G Zweifel, W Lewis, HP On

文献索引：Zweifel,G. et al. Journal of the American Chemical Society, 1979 , vol. 101, p. 5101 - 5102

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被引用次数: 37

摘要

A number of years ago we revealed that preparation of the synthetically valuable a- haloalkenylboranes may be readily achieved through hydroboration of 1-halo-I-alkynes with dialkylboranes.'Unfortunately, attempts to synthesize the corresponding a- haloalkenylalanates via the reaction of 1-halo-1-alkynes with diisobutylaluminum hydride were unsuccessful.* However, since the trifunctional a-halovinylalanyl moiety represents a ...