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Cyclic sulphur-nitrogen compounds and phosphorus reagents. Part 2. Reactions of tetrasulphur tetranitride with (morpholino)diphenylphosphine. First observation of the ring contraction of 1,5-[(OC4H8N)Ph2PN]2S 4N4 to (OC4H8N)Ph2PNS3N3 in solution
Colacot J. Thomas
Published in
1988
   
Issue: 6
Pages: 1445 - 1447
Abstract
(Morpholino)diphenylphosphine, unlike PPh3, gives only two new compounds, (OC4H8N)Ph2PNS3N3, (1), and 1,5-[(OC4H8N)Ph2PN]2S 4N4, (2), on reacting with S4N4. The reaction temperature, solvent, and mole ratio of the reactants are critically important in their synthesis. For the first a ring contraction of compound (2) to compound (1) in solution at room temperature has been observed and evidence for the elimination of the 'NSR' group (R = phosphinimino group) obtained.
About the journal
JournalJournal of the Chemical Society, Dalton Transactions
ISSN14727773
Open AccessNo