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Development of a New Heterocycle-Forming Reaction and Kinetic Resolution with N-Heterocyclic Carbenes

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Development of a New Heterocycle-Forming Reaction and Kinetic Resolution with N-Heterocyclic Carbenes/ by Yinli Wang.
作者:	Wang, Yinli.
面頁冊數:	XVI, 105 p.online resource. :
Contained By:	Springer Nature eBook
標題:	Organic chemistry. -
電子資源:	https://doi.org/10.1007/978-981-13-9398-3
ISBN:	9789811393983

Development of a New Heterocycle-Forming Reaction and Kinetic Resolution with N-Heterocyclic Carbenes
Wang, Yinli.

Development of a New Heterocycle-Forming Reaction and Kinetic Resolution with N-Heterocyclic Carbenes[electronic resource] /by Yinli Wang. - 1st ed. 2019. - XVI, 105 p.online resource. - Springer Theses, Recognizing Outstanding Ph.D. Research,2190-5053. - Springer Theses, Recognizing Outstanding Ph.D. Research,.

Introduction -- Oxa- and Azacycle-formation via Migrative Cyclization of Sulfonylalkynol and Sulfonylalkynamide -- Kinetic Resolution of α-Hydroxy Carboxylic Acid Derivatives Based on Chiral Recognition of Substrate–Cocatalyst Complex -- Conclusion -- Experimental Section.

In this book, the author focuses on exploring new organocatalytic transformations under operationally simple and environmentally friendly reaction conditions. Two new types of catalytic reactions promoted by N-heterocyclic carbenes (NHCs) are described. The oxa- and azacycle-forming reactions of sulfonylalkynols and sulfonylalkynamides are broadly considered to be a new type of activation mode in NHC chemistry, wherein the bond formation with internal O- and N-nucleophiles occurs at the γ-position of the propargyl sulfones with 1,2-sulfonyl migration. The resulting oxa- and azacycles are core structures in many biologically significant compounds and medicinally important agents. In addition, the book develops the chiral NHC-catalyzed kinetic resolution of α-hydroxy carboxylic acid derivatives based on chiral recognition of the substrate–cocatalyst complex. In this carboxylate cocatalyst-assisted chiral acylation, the reaction rate acceleration and selectivity enhancement are interpreted in terms of the reversible complexation of the substrate and carboxylate cocatalyst, which is verified by control experiments and measured using analytical methods. The findings described here reveal a promising new aspect of not only NHC catalysis but also identifying novel catalysis systems. .

ISBN: 9789811393983

Standard No.: 10.1007/978-981-13-9398-3doiSubjects--Topical Terms:

1148722
Organic chemistry.

LC Class. No.: QD415-436

Dewey Class. No.: 547

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