S. Eguchi et al., SYNTHESIS OF HOMOADAMANTANO[4,5-E]-2H-AZAPINES VIA CYCLOADDITION OF HOMOADAMANTANO[4,5-C]CYCLOPENTADIENONES WITH 1-AZIRINES, Heterocyclic communications, 2(6), 1996, pp. 499-505
Thermal cycloaddition reaction of homoadamantano[4,5-c]cyclopentadiene
ones 1 with 1-azirines 2 underwent on heating at 150 degrees C to affo
rd homoadamantano[4,5-e]-2H-azepines 4 selectively.