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Synthesis of Phenanthrenes through Visible‐Light Photoredox Catalyzed Intramolecular Cyclization of α‐Bromochalcones
Author(s) -
Nagode Savita B.,
Kant Ruchir,
Rastogi Namrata
Publication year - 2018
Publication title -
european journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 1434-193X
DOI - 10.1002/ejoc.201800011
Subject(s) - phenanthrenes , chemistry , photoredox catalysis , regioselectivity , intramolecular force , photochemistry , catalysis , visible spectrum , radical , photocatalysis , substrate (aquarium) , phenanthrene , combinatorial chemistry , organic chemistry , physics , oceanography , optoelectronics , geology
A mild and efficient photocatalytic protocol for the synthesis of the phenanthrene scaffold has been devised. The reaction involves intramolecular cyclization of α‐keto vinyl radicals generated from α‐bromochalcones under visible light photoredox catalyzed (VLPC) conditions. The high product yields, wide substrate scope, and complete regioselectivity are notable attributes of the reaction.