IMPROVED PROCEDURE FOR FUNCTIONALIZED 3,3-DIMETHOXYCYCLOBUTENES - USEFUL INTERMEDIATES IN ORGANIC-SYNTHESIS

Authors
GRAZIANO ML IESCE MR CERMOLA F
Citation
Ml. Graziano et al., IMPROVED PROCEDURE FOR FUNCTIONALIZED 3,3-DIMETHOXYCYCLOBUTENES - USEFUL INTERMEDIATES IN ORGANIC-SYNTHESIS, Synthesis, (2), 1994, pp. 149-151
Citations number
18
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Synthesis → ACNP
ISSN journal
00397881
Issue
2
Year of publication
1994
Pages
149 - 151
Database
ISI
SICI code
0039-7881(1994):2<149:IPFF3->2.0.ZU;2-E
Abstract
The [2+2] cycloaddition of the 1,1-dimethoxyalkenes 1 and the electron -poor alkynes 2 in dry chloroform affords the functionalized 3,3-dimet hoxycyclobutenes 3 in good to excellent yields (40-100%). The latter b y electrocyclic ring opening give the dienes 4, starting materials to multifunctional compounds such as the esters 5 and the cyclohexenes 6.