Issue 1, 2013

Reactions of phosphorus/boron frustrated Lewis pairs with SO2

Abstract

The frustrated Lewis pair tBu3P/B(C6F5)3 (1) readily adds SO2 to yield the zwitterionic adduct tBu3P+–S(O)–OB(C6F5)3 (3). A series of intramolecular vicinal P/B FLPs Mes2P–(X)–B(C6F5)2 [X = –CH2–CH2– (2a), –CHMe–CH2– (2b), cyclo-C6H10 (5)] add SO2 at −78 °C to yield the corresponding six-membered addition products 4a, 4b, 6. The adducts contain a chiral sulfur center. The [B]–O–(O)S–[P] addition products 3, 4b and 6 were characterized by X-ray diffraction.

Graphical abstract: Reactions of phosphorus/boron frustrated Lewis pairs with SO2

Supplementary files

Article information

Article type
Edge Article
Submitted
03 Aug 2012
Accepted
10 Sep 2012
First published
11 Sep 2012

Chem. Sci., 2013,4, 213-219

Reactions of phosphorus/boron frustrated Lewis pairs with SO2

M. Sajid, A. Klose, B. Birkmann, L. Liang, B. Schirmer, T. Wiegand, H. Eckert, A. J. Lough, R. Fröhlich, C. G. Daniliuc, S. Grimme, D. W. Stephan, G. Kehr and G. Erker, Chem. Sci., 2013, 4, 213 DOI: 10.1039/C2SC21161K

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