76958-87-7

Upstream product

• 1079-66-9 chloro-diphenylphosphine 
• 1101-41-3 Tetraphenyldiphosphin 
• 90498-60-5 7,7-Diphenyl-1λ⁴,3λ⁴,5λ⁴-trithia-2,4,6,8,9-pentaaza-7λ⁵-phospha-bicyclo[3.3.1]nona-1(8),2,3,5(9),6-pentaene 

Downstream Products

• 90498-59-2 (1S,3R)-1,3-Dichloro-5,5-diphenyl-1λ⁴,3λ⁴,5λ⁵-[1,3,2,4,6,5]dithiatriazaphosphinine 
• 90498-60-5 7,7-Diphenyl-1λ⁴,3λ⁴,5λ⁴-trithia-2,4,6,8,9-pentaaza-7λ⁵-phospha-bicyclo[3.3.1]nona-1(8),2,3,5(9),6-pentaene 
• 112596-21-1 (C₆H₅)2PS₂N₃H⁽¹⁺⁾*BF₄^(1-)={(C₆H₅)2PS₂N₃H}BF₄ 
• 112596-23-3 (C₆H₅)2PS₂N₃*SnCl₄ 
• 112596-25-5 trans-(Ph₂PN₃S₂)2SnCl₄ 
• 145203-21-0 PtCl₂(P(C₂H₅)3)((C₆H₅)2PS₂N₃) 
• 80326-55-2 C₁₉H₁₈N₃PS₂ 

Relevant academic research and scientific papers

Preparation and Crystal Structure of 1,1-Diphenyl-1-phospha-3,5-dithia-2,4,6-triazene, Ph2PS2N3; an Eight ?-electron Inorganic Heterocycle

The reaction of tetraphenyldiphosphine with S4N4 in toluene produces the six-membered heterocycle Ph2PS2N3, the structure of which has been determined by X-ray crystallography; the structural parameters and electronic spectrum of the PS2N3 ring are consis

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)

The oxidative addition of Cl2 (using SO2Cl2) to the six-membered ring (R2PN)(SN)2 (R=Me, Ph) produces the mixed phosphazene-thiazyl heterocycles, (R2PN)(NSCl)2, which react with Me3SiNSNSiMe3 to give the bicyclic compounds R2PS3N5.The latter undergo thermal decomposition at ca. 100 deg.C in toluene, via reductive elimination of an NSN unit to regenerate (R2PN)(SN)2 in high yield.Kinetic measurements of this process, using 31P nmr spectroscopy, yield an activation energy of 102.4+/-6.0 kJ mol-1 for the release of the NSN fragment from Me2PS3N5.The thermolysis route has been used to prepare the thermally unstable (F2PN)(SN)2, characterized as a 1:1 adduct with norbornadiene.

Reactions of the trisulfur trinitride anion, S3N3-, with halogens and other electrophilic substrates

The reactions of the trisulfur trinitride anion, S3N3-, with halogens (Cl2, Br2, I2), AsF5, SOCl2, SO2Cl2, S2Cl2, COCl2, CS2, Me3SiCl, and Ph2PCl have been investigated.In all cases these reactions gave mixtures of known sulfur-nitrogen compounds.Thus the halogens react with S3N3- to give mainly S4N4, S4N3+X- (X=Br, Cl), (SN)x, and S3N3X3 (X=Cl), while AsF5 oxidizes S3N3- to S4N4*AsF5.The major products of the reaction of S3N3- with SOCl2 or SO2Cl2 were S4N4, S4N3+Cl-, and (for SOCl2 only) S3N2O2.S3N2Cl was the main product of the reaction of S3N3- with S2Cl2, whereas COCl2 yielded (SN)x in addition to S3N2Cl and S4N4.Carbon disulfide reacts with S3N3- to give S4N2, S4N4, and CNS-.The cyclophosphathiazenes, (Ph2PN)(SN)2, 1,3- and 1,5-(Ph2PN)2(SN)2, in addition to (Ph2PN)x (x=3, 4), (Ph2PN)3*HCl and (Ph2PN)2NSCl were isolated from the reactions of Ph2PCl with S3N3- in various molar ratios.The latter reaction represents a useful alternative synthesis of the 1,5-isomer of the eight-membered ring (Ph2PN)2(SN)2.