Volume 126, Issue 36 pp. 9666-9670
Zuschrift

Highly Efficient “On Water” Catalyst-Free Nucleophilic Addition Reactions Using Difluoroenoxysilanes: Dramatic Fluorine Effects

Jin-Sheng Yu

Jin-Sheng Yu

Shanghai Key Laboratory of Green Chemistry and Chemical Processes, East China Normal University, 3663N, Zhongshan Road, Shanghai 200062 (China)

Search for more papers by this author
Yun-Lin Liu

Yun-Lin Liu

Shanghai Key Laboratory of Green Chemistry and Chemical Processes, East China Normal University, 3663N, Zhongshan Road, Shanghai 200062 (China)

Search for more papers by this author
Jing Tang

Jing Tang

Shanghai Key Laboratory of Green Chemistry and Chemical Processes, East China Normal University, 3663N, Zhongshan Road, Shanghai 200062 (China)

Search for more papers by this author
Prof. Dr. Xin Wang

Corresponding Author

Prof. Dr. Xin Wang

College of Chemistry, Sichuan University, Chengdu, 610064 (China)

Xin Wang, College of Chemistry, Sichuan University, Chengdu, 610064 (China)

Jian Zhou, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, East China Normal University, 3663N, Zhongshan Road, Shanghai 200062 (China)

Search for more papers by this author
Prof. Dr. Jian Zhou

Corresponding Author

Prof. Dr. Jian Zhou

Shanghai Key Laboratory of Green Chemistry and Chemical Processes, East China Normal University, 3663N, Zhongshan Road, Shanghai 200062 (China)

State Key Laboratory of Elemento-organic Chemistry, Nankai University, Tianjin 300071 (P. R. China)

Xin Wang, College of Chemistry, Sichuan University, Chengdu, 610064 (China)

Jian Zhou, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, East China Normal University, 3663N, Zhongshan Road, Shanghai 200062 (China)

Search for more papers by this author
First published: 17 July 2014
Citations: 50

We thank Prof. Dr. Shu-Hua Li of Nanjing University and Prof. Dr. Yu-Xue Li of Shanghai Institute of Organic Chemistry for their constructive suggestions. Financial support from NSFC (21172075, 21222204), 973 program (2011CB808600), the Ministry of Education (NCET-11-0147 and PCSIRT), and Program of SSCS (13XD1401600) is appreciated.

Abstract

A remarkable fluorine effect on “on water” reactions is reported. The CF⋅⋅⋅HO interactions between suitably fluorinated nucleophiles and the hydrogen-bond network at the phase boundary of oil droplets enable the formation of a unique microstructure to facilitate on water catalyst-free reactions, which are difficult to realize using nonfluorinated substrates. Accordingly, a highly efficient on water, catalyst-free reaction of difluoroenoxysilanes with aldehydes, activated ketones, and isatylidene malononitriles was developed, thus leading to the highly efficient synthesis of a variety of α,α-difluoro-β-hydroxy ketones and quaternary oxindoles.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.