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Your search keyword '"Wang, Haolong"' showing total 6 results
Start Over Author "Wang, Haolong" Topic ring closure reactions
6 results on '"Wang, Haolong"'

1. ChemInform Abstract: Selective Synthesis of Functionalized Pyrroles from 3-Aza-1,5-enynes.

Author

Zhao, Yingying, Wang, Haolong, Li, Xincheng, Wang, Dongping, Xin, Xiaoyi, and Wan, Boshun

Subjects
*PYRROLES, *CHEMICAL synthesis, *AZA compounds, *ENYNES, *TRIFLUOROMETHYL compounds, *CHEMOSELECTIVITY, *VINYL polymers
Abstract

Efficient cyclization strategies for the synthesis of functionalized 2-trifluoromethyl-5-(arylsulfonyl) methyl pyrroles, 2-trifluoromethyl-4-(arylsulfonyl) methyl pyrroles, and alkylvinyl pyrroles from the versatile azaenynes are developed. [ABSTRACT FROM AUTHOR]

Published
2016
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2. Rhodium-Catalyzed C--H Annulation of Nitrones with Alkynes: A Regiospecific Route to Unsymmetrical 2,3-Diaryl-Substituted Indoles.

Author

Yan, Hao, Wang, Haolong, Li, Xincheng, Xin, Xiaoyi, Wang, Chunxiang, and Wan, Boshun

Subjects
*RHODIUM catalysts, *PLATINUM group catalysts, *NITRONES
Abstract

N-Phenyl-α-arylnitrones react with symmetrical dialkylacetylenes to form unsymmetrically 2,3-diaryl-substituted N-unprotected indole derivatives in moderate to often high yields. The scalable, regioselective reaction is applicable to dialkylacetylenes and tolerates diverse functional groups. [ABSTRACT FROM AUTHOR]

Published
2016
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3. ChemInform Abstract: Base-Catalyzed Selective Synthesis of 2-Azabicyclo[3.2.0]hept-2-enes and Sulfonyl Vinyl-Substituted Pyrroles from 3-Aza-1,5-enynes.

Author

Xin, Xiaoyi, Wang, Haolong, Li, Xincheng, Wang, Dongping, and Wan, Boshun

Subjects
*SULFONYL compounds, *PYRROLES, *ENYNES, *CHEMOSELECTIVITY, *CYCLOISOMERIZATION
Abstract

The chemoselectivity of the base-catalyzed cycloisomerization of 3-aza-1,5-enynes is controlled by the terminal yne-substituent. [ABSTRACT FROM AUTHOR]

Published
2016
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5. ChemInform Abstract: Facile Synthesis of 5H-Benzo[b]carbazol-6-yl Ketones via Sequential Reaction of Cu-Catalyzed Friedel-Crafts Alkylation, Iodine-Promoted Cyclization, Nucleophilic Substitution and Aromatization.

Author

Wu, Jing, Wang, Dongping, Wang, Haolong, Wu, Fan, Li, Xincheng, and Wan, Boshun

Subjects
*INDOLE compounds, *BENZYLIDENE compounds
Abstract

Benzocarbazoles are prepared in a two step procedure from indole and benzylidene malonitrile. [ABSTRACT FROM AUTHOR]

Published
2015
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6. ChemInform Abstract: DABCO-Catalyzed Synthesis of 3-Bromo-/3-iodo-2H-pyrans from Propargyl Alcohols, Dialkyl Acetylene Dicarboxylates, and N-Bromo-/N-Iodosuccinimides.

Author

Chong, Qinglei, Wang, Chunxiang, Wang, Dongping, Wang, Haolong, Wu, Fan, Xin, Xiaoyi, and Wan, Boshun

Subjects
*PYRAN synthesis, *PROPARGYL alcohol, *SUCCINIMIDES
Abstract

The article presents chemical equations related to the article "DABCO-Catalyzed Synthesis of 3-Bromo-/3-iodo-2H-pyrans from Propargyl Alcohols, Dialkyl Acetylene Dicarboxylates, and N-Bromo-/N-Iodosuccinimides" by Q. Chong and others, published in the periodical "Tetrahedron Letters" in 2015.

Published
2015
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