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Cyclic SN compounds and phosphorus reagents: Part X. Synthesis and characterization of phosphinimino-substituted SN heterocycles

✍ Scribed by C. J. Thomas; M. N. Sudheendra Rao

Book ID: 102846526
Publisher: John Wiley and Sons
Year: 1992
Tongue: English
Weight: 558 KB
Volume: 3
Category: Article
ISSN: 1042-7163
DOI: 10.1002/hc.520030403

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✦ Synopsis

R o o m temperature reactions o f S f l , with (amino) diphenylphosphines, (R)Ph2P, have basically yielded two different types of S-N heterocycles under two different stoichiometric conditions. Phosphiniminocyclotrithiatriazenes, (R)Ph2PN-S3N3 (R = C4H8N-, C5HioN-, C,Hi2N--, CH,NC,H&--, ( C ~H I 1 ) 2 N-, and (C,H jCH2)2N-) have been obtained (yield 45-76%) from a 1 :2 mole ratio (S4N4: (R)Ph,P) reaction, while the disubstituted S f l , derivatives, and C,H12N-) have been obtained (yield 30-45%) only from a I :3.5-4 mole ratio reaction. All the 1,5-[Ph2(R)PNl2S,N4 derivatives prepared in this study undergo a room temperature solution phase transformation to the corresponding (R)Ph2PN-S3N, heterocycles.

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