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Selective synthesis of some 4,5‐dihydro‐2 H ‐benzo[ g ]indazoles and 8,9‐dihydro‐2 H ‐benzo[ e ]indazoles via the vilsmeier‐haack reaction under thermal and microwave assisted conditions
Author(s) -
Sivaprasad Ganesabaskaran,
Sridhar Radhakrishnan,
Perumal Paramasivan T.
Publication year - 2006
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.5570430219
Subject(s) - chemistry , microwave irradiation , tetralone , medicinal chemistry , stereochemistry , organic chemistry , catalysis
A selective and easy method is described for the synthesis of 4,5‐dihydro‐2 H ‐benzo[ g ]indazoles and 8,9‐dihydro‐2 H ‐benzo[ e ]indazoles by the Vilsmeier‐Haack reaction of various tetralone phenylhydrazones under thermal and microwave irradiation conditions.