920984-29-8Relevant articles and documents
1,3-Dipolar cycloadditions of silicon and tin alkynes and alkenes. Regiospecific synthesis of silyl and stannylpyrazoles and pyrazolines
González-Nogal, Ana M.,Calle, Mariola,Cuadrado, Purificación,Valero, Raquel
, p. 224 - 231 (2007/10/03)
Silicon and tin 3-, 3,5-, and 3,4,5-metalated pyrazoles have been synthesized by 1,3-dipolar cycloadditions of silyl-, disilyl-, and silylstannylacetylenes with N-phenylsydnone or trimethylsilyldiazomethane. On the other hand, 1- and 2-pyrazolines monomet