Intramolecular alkyllithium additions to lactams; a synthesis of 2,3,9,9a-tetrahydro-1H-pyrrolo[1,2-a]indoles (pyrrolo[1,2-a]indolemnes) related to mitomycins
Intramolecular organolithium addition to indol-2(3H )-ones; an approach to the synthesis of pyrrolo[1,2-a]indoles and pyrido[1,2-a]indoles
作者:Keith Jones、John M. D. Storey
DOI:10.1039/a909548i
日期:——
Cyclisation of 3 and 10 by lithium–halogen exchange followed by reduction with lithium aluminium hydride gives pyrrolo[1,2-a]indoles 11 and 13 respectively. Similar treatment of bromides 4a and 4b gives pyrido[1,2-a]indoles 12a and 12b.