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Start Over Author "Rui Pan" Publisher american chemical society
9 results on '"Rui Pan"'

4. Multicomponent reaction of imidazo[1,5-a]pyridine carbenes with aldehydes and dimethyl acetylenedicarboxylate or allenoates: a straightforward approach to fully substituted furans

Author

Huan-Rui Pan, Yong-Jia Li, Cai-Xia Yan, Juan Xing, and Ying Cheng

Subjects
Carbenes -- Structure, Carbenes -- Chemical properties, Furans -- Structure, Furans -- Chemical properties, Imidazole -- Structure, Imidazole -- Chemical properties, Pyridine -- Structure, Pyridine -- Chemical properties, Substitution reactions -- Analysis, Aldehydes -- Structure, Aldehydes -- Chemical properties, Biological sciences, Chemistry
Abstract

The facile three-component reactions of N,N-substituted imidazo[1,5-a]pyridine carbenes (imidazo[1,5-a]pyridine-3-ylidenes) with aldehydes and DMAD or allenoates are described. The studies have provided the example of the application of imidazo[1,5-a]pyridine-3-ylidenes in organic synthesis and have developed a straightforward approach to fully substituted furans that are not accessible by other methods.

Published
2010

6. Cascade Radical 1,6-Addition/Cyclization of para-Quinone Methides: Leading to Spiro[4.5]deca-6,9-dien-8-ones.

Author

Rui Pan, Lingyin Hu, Chunhua Han, Aijun Lin, and Hequan Yao

Subjects
*RING formation (Chemistry), *CASCADE connections, *AZIDE derivatives, *CHEMICAL derivatives, *REGIOSELECTIVITY (Chemistry)
Abstract

A cascade three-component iodoazidation of para-quinone methides to construct spiro[4.5]deca-6,9-dien-8-ones under mild conditions has been developed. The chemoselective 1,6-addition of azide radical triggered a regioselective 5-exo-dig cyclization/radical coupling sequence, enabling C–N, C–C, and C–I bond formations in a one-pot procedure with high efficiency. [ABSTRACT FROM AUTHOR]

Published
2018
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