Photochemistry of 3H-furo[3,4-c]pyrazoles and 3H-thieno[3,4-c] pyrazoles
Access Status
Fulltext not available
Authors
Payne, Alan
Date
2013Type
Journal Article
Metadata
Show full item recordCitation
Payne, Alan D. 2013. Photochemistry of 3H-furo[3,4-c]pyrazoles and 3H-thieno[3,4-c] pyrazoles. Tetrahedron. 69 (44): pp. 9316-9321.
Source Title
Tetrahedron
ISSN
Collection
Abstract
The first examples of 3H-furo [3,4-c]pyrazoles and 3H-thieno[3,4-c]pyrazoles were prepared in an attempt to isolate examples of cyclopropane-fused thiophenes and furans. Adducts of acetylenic ketones and 2-diazopropane were reacted with 10-camphorsulfonic acid or phosphorus pentasulfide to produce the title compounds. Photolysis of these compounds did not give the cyclopropane-fused products rather an unreported photochemical fragmentation was observed.
Related items
Showing items related by title, author, creator and subject.
-
Dolzhenko, Anton; Bai, S.; Dolzhenko, A.; Chui, W. (2012)A new convenient synthon for heterocyclic chemistry, namely 1H-pyrazolo[3,4-b]pyridin-3-ylguanidine was successfully prepared by selective guanylation of 1H-pyrazolo[3,4-b]pyridin-3-amine. A series of 3,4-dihydropyrido[ ...
-
Lim, Felicia Phei Lin; Luna, Giuseppe; Dolzhenko, Anton (2015)A one-pot, three-component, microwave-assisted reaction of 5-aminopyrazole-4-carbonitriles, triethyl orthoformate and cyanamide afforded novel 7-arylamino-substituted 4-aminopyrazolo[1,5-a][1,3,5]triazine-8-carbonitriles. ...
-
Kalinin, D.; Kalinina, S.; Dolzhenko, Anton (2013)The amino substituted triazine ring was annelated to aminoazoles using a new effective synthetic procedure. The method of preparation involved initial formation of azolylformamidines in the reaction of aminoazoles with ...