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Formation and Reactivity of Phosphorus–Selenium Rings

✍ Scribed by Guoxiong Hua; J. Derek Woollins

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
496 KB
Volume
48
Category
Article
ISSN
0044-8249

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✦ Synopsis

Abstract

Lawesson reagent for selenium fans: Phosphorus selenium heterocycles and, in particular, [PhPSe~2~]~2~ (known as Woollins' reagent) are proving valuable in the synthesis of new heterocycles and for the insertion of selenium into organic substrates. Incorporation of phosphorus and selenium atoms into the products leads to a surprising variety of structures.magnified image

Phosphorus–selenium ring chemistry has developed to include the synthesis of some exciting new motifs and provided organic chemists with a new reagent, [PhPSe~2~]~2~, which has become known as Woollins’ reagent.

📜 SIMILAR VOLUMES

The preparation and characterization of
The preparation and characterization of binary phosphorus–selenium rings
✍ Mark J. Pilkington; Alexandra M. Z. Slawin; David J. Williams; Paul T. Wood; J. 📂 Article 📅 1990 🏛 John Wiley and Sons 🌐 English ⚖ 434 KB

## Depending on the ratio of reactants, reaction of (PPh), (1) with grey selenium gives (PhPSe2I2 (21, (PhP)3Se2 (3), (PhP)4Se (4), and (PhP),Se, (5). The compounds have been characterized by multielement N M R , mass spectrometry, microanalyses, and, in the case of 4, Xray crystallography. 4 cons

ChemInform Abstract: Ring Transformation
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✍ Olav M. Aagaard; René A. J. Janssen; Bas F. M. de Waal; Henk M. Buck 📂 Article 📅 1991 🏛 John Wiley and Sons 🌐 English ⚖ 431 KB

Molecular mechanics calculations, using the AMBER program (version 3.0), are presented on the radiogenic electron-capture radical formation in the crystalline chiral organophosphorus compounds (2R,4S,5R) and (2S,4S,5R) 2-chloro-3,4-dimethyl-5-phenylphospholidine 2-sulfide (respectively 1 and 2). Geo