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Your search keyword '"Pan, Ling"' showing total 2 results
Start Over Author "Pan, Ling" Topic isocyanides Publisher royal society of chemistry
2 results on '"Pan, Ling"'

1. Regiodivergent heterocyclization: a strategy for the synthesis of substituted pyrroles and furans using α-formyl ketene dithioacetals as common precursors.

Author

Wu, Ting, Pan, Ling, Xu, Xianxiu, and Liu, Qun

Subjects
*PYRROLES, *CHEMICAL synthesis, *FURANS synthesis, *KETENES, *CHEMICAL precursors, *ISOCYANIDES, *CATALYSTS
Abstract

The selective construction of a diverse array of five-membered aromatic heterocycles from common starting materials is an attractive and challenging task. We report here that 5-alkylthio-pyrroles, 4-alkylthiocarbonyl-pyrroles and 2-alkylthio-4-tosyl-furans can be prepared, selectively, in a single operation using the readily available α-formyl ketene dithioacetals as common precursors, through their regiodivergent heterocyclization with α-acidic isocyanides controlled by the choice of suitable catalysts/promoters. [ABSTRACT FROM AUTHOR]

Published
2014
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2. Tandem Michael addition/intramolecular isocyanide [3 + 2] cycloaddition: highly diastereoselective one pot synthesis of fused oxazolinesElectronic supplementary information (ESI) available: Detailed experimental procedures and analytical data. CCDC 753607(2a) and CCDC 761982(6b). For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c001617a

Author

Zhang, Lingjuan, Xu, Xianxiu, Tan, Jing, Pan, Ling, Xia, Wenming, and Liu, Qun

Subjects
ISOCYANIDES, ADDITION reactions, RING formation (Chemistry), OXAZOLES, ORGANIC synthesis, ACETATES, CATALYSTS, FUNCTIONAL groups
Abstract

A base-catalyzed tandem Michael addition/intramolecular isocyanide [3 + 2] cycloaddition of ethyl isocyanoacetate and Michael acceptors with tethered carbonyl groups is described. This reaction leads to the formation of fused oxazolines in a highly diastereoselective manner under very mild conditions. [ABSTRACT FROM AUTHOR]

Published
2010
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