The reaction of S4N4 with dicyclohexylaminophenyl-(2-aminopyridyl)phosphine in MeCN at room temperature leads to the formation of the novel compound Ph(cyclo Hex2N)PS2N3. An X-Ray structure determination confirms that this compound consists of a six-membered PSN-ring with two different substituents at phosphorus. © 1992, Taylor & Francis Group, LLC. All rights reserved.

Talla Venkata Rama Mohan

Colacot J. Thomas

Madhugiri N. Sudheendra Rao

Gopalaswamiengar Aravamudan

IIT Madras is a public technical and research university located in Chennai, Tamil Nadu. Founded in 1959, it is recognised as an Institute of National Importance.

IIT Madras has been ranked as the top engineering institute in India for four years in a row by the National Institutional Ranking Framework of the MHRD

It currently offers undergraduate, postgraduate and research degrees across 16 disciplines in Engineering, Sciences, Humanities and Management. About 596 faculty belonging to science and engineering departments and centres of the Institute are engaged in teaching, research and industrial consultancy.

IIT Madras

Preparation and structural characterization of 1-phenyl-1-(dicyclohexylamino)cyclo-1-phospha-3,5-dithia-2,4,6-triazene - a phosphathiazene with different substituents on phosphorus

Phosphorus, Sulfur, and Silicon and the Related Elements

The reactions of S4N4 with phosphines of the type PhPR2 (1-5) and PhR′PR [6-11 (R′ = dicyclohexylamino), R: 1,6 = pyrrolidino; 2,7 = piperidino; 3,8 = morpholino; 4,9 = N-methylpiperazino; 5,10 = hexamethylenimino; and 11 = anilino] afford the phosphiniminocyclotrithiazene derivatives, 12-22 at room temperature. Only in the case of the phosphine 10 was the disubstituted derivative 23 isolated (in 65% yield). The trithiazene derivatives of the chiral phosphines in refluxing CH3CN produce the acyclic compounds → PN-S3N, 24-27 in ca. 60% yield. Norbornadiene reacts at room temperature with the cyclotrithiazene derivatives to give the addition products 28-35. → P=N-S3N3 derivatives are found to be stable in 2M NaOH. © 1997 John Wiley &amp; Sons, Inc.

Heteroatom Chemistry

Reactions of S4N4 with tertiary phosphines - Synthesis of phosphiniminocyclothiazenes and their reactions

Reaction of PhPCl2 with dicyclohexylamine followed by a secondary amine affords stable tertiary phosphine (Ph)(DCA)(NR2)P in good yield which reacts readily with sulphur to give the phosphine sulphide (Ph)(DCA)(NR2)P(S). © 1989.

Tetrahedron Letters

Stable chiral but racemic phosphines (R)(R′)(R″)P containing two different (amino) substituents : high yield synthesis and conversion to the respective phosphine sulphides

Science

Elsewhere in Science, 14 November 2014

J. Chem. Soc., Chem. Commun.

A general method of promoting oxidative addition of C–H bonds to iridium(I) using azine phosphines

Inorganic Chemistry

Specific syntheses of the unsaturated phosphorus-nitrogen-sulfur rings R2PN3S2, 1,5-(R2P)2N4S2, and R2PN5S3 (R = Ph, Me)

Canadian Journal of Chemistry

Synthetic and kinetic studies of the reversible addition of a bridging NSN fragment to the electron-rich heterocycles (R2PN)(SN)2 (R = Me, Ph, F)

Preparation and Structural Characterization of 1-Phenyl-L-(Dicycl0Hexylamino)Cyclo-L-Phospha-3, 5-Dithia-2, 4, 6-Triazene; A Phosphathiazene with Different Substituents on Phosphorus

Journal	Phosphorus, Sulfur, and Silicon and the Related Elements
ISSN	10426507
Open Access	No