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ChemInform Abstract: Synthesis and Reaction of Tributylstannylpyrazoles
- Source :
- ChemInform. 23
- Publication Year :
- 2010
- Publisher :
- Wiley, 2010.
-
Abstract
- 1,3-Dipolar cycloaddition reaction of diazomethane and ethyl diazoacetate with tributylstannyl-acetylenes occurred regioselectively to afford the corresponding 3(5)-tributylstannylpyrazoles. The cycloaddition reaction of 3-phenylsydnone with the stannylacetylenes proceeded also regioselectively, and 3-tributylstannyl-1-phenylpyrazoles were isolated. 4-Tributylstannyl- and 5-tributylstannyl-1-phenylpyrazole were prepared by the stannylation of 4-lithio- and 5-lithio-1-phenylpyrazoles with tributylstannyl chloride. Iodination, benzoylation, and phenylation of the stannylpyrazoles were examined
Details
- ISSN :
- 09317597
- Volume :
- 23
- Database :
- OpenAIRE
- Journal :
- ChemInform
- Accession number :
- edsair.doi...........497d1abb1818d73ee5f380090cfa1185