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An efficient stereospecific preparation of (Z)‐3‐methylidene‐selenophthalides and (z)‐3‐methylidenetellurophthalides
Author(s) -
Sashida Haruki,
Kawamukai Atsusbi
Publication year - 1998
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570350131
Subject(s) - chemistry , stereospecificity , stereochemistry , organic chemistry , combinatorial chemistry , catalysis
(Z)‐3‐Methylideneselenophthalides 5A and (Z)‐3‐methylidenetellurophthalides 5B were easily prepared by the regioselective and stereoselective reaction of 2‐ethynylbenzoyl chlorides 3 with sodium hydroselenide and sodium hydrotelluride in good yields, respectively.