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Chiral Rh- and Ir-catalyzed intramolecular cycloaddition of hexaynes for the construction of new chiral skeletons

✍ Scribed by Takanori Shibata; Tatsuya Chiba; Hiroyuki Hirashima; Yasunori Ueno; Kohei Endo

Book ID
102234536
Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
204 KB
Volume
22
Category
Article
ISSN
1042-7163

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✦ Synopsis

Abstract

Enantioselective intramolecular cycloaddition of hexaynes with 1,3‐diyne moiety was examined. Chiral Rh catalyst provided axially chiral 1,1β€² ‐bis(biphenylenyl) derivatives by consecutive [2+2+2] cycloaddition. In contrast, chiral Ir catalyst provided axially chiral macrocyclic compounds with 1,3‐diyne moiety by single [2+2+2] cycloaddition. Β© 2011 Wiley Periodicals, Inc. Heteroatom Chem 22:363–370, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/hc.20691

πŸ“œ SIMILAR VOLUMES

ChemInform Abstract: Chiral Rh- and Ir-C
ChemInform Abstract: Chiral Rh- and Ir-Catalyzed Intramolecular Cycloaddition of Hexaynes for the Construction of New Chiral Skeletons.
✍ Takanori Shibata; Tatsuya Chiba; Hiroyuki Hirashima; Yasunori Ueno; Kohei Endo πŸ“‚ Article πŸ“… 2011 πŸ› John Wiley and Sons βš– 48 KB

## Abstract The chiral Rh complex catalyzes the consecutive [2+2+2] cycloadditions, whereas the chiral neutral Ir complex causes a single [2 + 2 + 2] cycloaddition.