| Literature DB >> 26618403 |
Yi-Long Zhu1,2, Bo Jiang2,3, Wen-Juan Hao2, Jiang-Kai Qiu1,2, Jun Sun1,2, De-Cai Wang1, Ping Wei1, Ai-Fang Wang2, Guigen Li3,4, Shu-Jiang Tu2.
Abstract
A new metal-free bicyclization reaction of 1,7-enynes anchored by α,β-conjugates with arylsulfonyl radicals generated in situ from sulfonyl hydrazides has been established using tert-butyl hydroperoxide and tetrabutylammonium iodide. The reactions occurred through sulfonylation/6-exo-dig/6-exo-trig bicyclization/in situ desulfonylation/5-exo-trig cyclization/alkyl or alkenyl migration cascade mechanism to give benzo[j]phenanthridines regioselectively.Entities:
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Year: 2015 PMID： 26618403 DOI： 10.1021/acs.orglett.5b03100
Source DB: PubMed Journal: Org Lett ISSN： 1523-7052 Impact factor: 6.005