[3+2] Cycloaddition of 3‐Diazooxindole with Arynes for the Synthesis of Spiro[indazole‐3,3′‐indolin]‐2′‐ones

Autor:	Raveendra Reddy Gopi Reddy, Basi V. Subba Reddy, Balasubramanian Sridhar, Veera Reddy Thummaluru
Rok vydání:	2017
Předmět:	Indazole Trimethylsilyl 010405 organic chemistry Chemistry Intermolecular force Single step General Chemistry 010402 general chemistry 01 natural sciences Combinatorial chemistry Aryne Cycloaddition 0104 chemical sciences chemistry.chemical_compound Organic chemistry
Zdroj:	ChemistrySelect. 2:4290-4293
ISSN:	2365-6549
DOI:	10.1002/slct.201700715
Popis:	An intermolecular cycloaddition between 3-diazooxindoles and arynes generated in situ from 2-(trimethylsilyl)phenyltrifluoromethanesulfonate in the presence of 2.5 mol% cesium fluoride has been achieved to produce a novel series of spiro[indazole-3,3′-indolin]-2′-one derivatives in good yields under mild experimental conditions. It is an elegant strategy for the quick construction of a highly rigid spirocyclic compounds in a single step.
Databáze:	OpenAIRE
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