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1,3-Dipolar cycloaddition of diazomethane to element-substituted (Si, Ge, Sn)-alkoxyacetylenes

Journal Article · · J. Gen. Chem. USSR (Engl. Transl.); (United States)
OSTI ID:5795544

1,3-Dipolar cycloaddition of diazomethane to the triple bond of trialkylsilyl-, trialkylgermyl-, and trialkylstannylalkoxyacetylenes proceeds regioselectivity and is a convenient method for synthesis of the previously not described 3(5)-element-substituted 4-alkoxypyrazoles. When heated in methanol in the presence of an acid, 3(5)-silyl(germyl)-4-alkoxypyrazoles are slowly hydrolyzed with cleavage of the element-carbon bond.

Research Organization:
M. V. Lomonosov Moscow State Univ., USSR
OSTI ID:
5795544
Journal Information:
J. Gen. Chem. USSR (Engl. Transl.); (United States), Journal Name: J. Gen. Chem. USSR (Engl. Transl.); (United States) Vol. 55:9; ISSN JGCHA
Country of Publication:
United States
Language:
English

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