Phosphorus phosphides and phosphorus compounds with the coordination numbers 2, 3, 5, and 6
01 Jan 1977-pp 72-89
About: The article was published on 1977-01-01. It has received None citations till now. The article focuses on the topics: Phosphorus.
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TL;DR: In this article, photolysis of toluene solutions of dialkyl-phosphorus or -arsenic chlorides (Me3Si)2CH]2MCl (M = P or As) or bisamido phosphorus (BPH) or -arsenic-centred radicals (me3Si2N]2N], characterized by their e.r.s. spectra.
Abstract: Photolysis of toluene solutions of dialkyl-phosphorus or -arsenic chlorides [(Me3Si)2CH]2MCl (M = P or As) or bisamido-phosphorus or -arsenic chlorides [(Me3Si)2N]2MCl (M = P or As) in the presence of an electron-rich olefin leads to solutions containing persistent (t½ > 1 month at 20 °C) two-co-ordinate phosphorus or arsenic-centred radicals [(Me3Si)2CH]2M· or [(Me3Si)2N]2M·(M = P or As) characterised by their e.s.r. spectra.
57 citations
53 citations
TL;DR: The new P-N bonded phosphino-and phosphinatopyrazoles and (C2H5)2P(pz) and the arsenic derivative (pz 3As) have been prepared and characterized.
Abstract: The new P—N bonded phosphino- and phosphinatopyrazoles and (C2H5)2P(pz) and the arsenic derivative (pz)3As have been prepared and characterized (pz = pyrazolyl, Me2pz = 3,5-dimethylpyrazolyl).The r...
51 citations
TL;DR: In this paper, three possibilities for the synthesis of phenylbis(trimethylsilyl)phosphine are described, which can be easily synthesized by cleavage of diarylphosphines with lithium and further reaction with chlorotimethylsilane.
48 citations
TL;DR: The first 1,3,2,4-Diazadiphosphetidine-2-ylium-salz as discussed by the authors was formed by the reaction of a phosphatriazene with dichloromethylphosphine, by cyclization of the bis (tert-butylamino) methylphosphines with phosphorus halides or by Grignard reaction of P-chloro-diazadophosphines.
Abstract: P-Methyl-diazadiphosphetidine des Typs 2 und 5entstehen durch Umsetzung eines Phosphatriazens mit Dichlormethylphosphin, durch Cyclisierung des Bis(tert-butylamino) methylphosphins mit Phosphorhalogeniden oder durch Grignardierung von P-Chlor-diazadiphosphetidinen. 2 und 5 lassen sich mit Chalkogenen zu den Diazadiphosphetiden-mono- und -dichalkogeniden 6 und 7 (X = O Te), durch Trimethylsilylazid zum Diazadiphosphetidin-diimid 7e oxidieren. Mit Methylhalogeniden bilden 2 und 5 die cyclischen Phosphoniumsalze 8 und 9.2 und AlCl3 ergeben das erste 1,3,2,4-Diazadiphosphetidin-2-ylium-Salz 12, eine Phosphor-Stickstoff-Verbindung bie der ein Phosphoratom zweifach koordiniert ist.
Elementorganic Amine/Imine Compounds, XVI
New Diazadiphosphetidines
The P-methyl-diazadiphosphetidines 2 and 5 are formed by the reaction of a phosphatriazene with dichloromethylphosphine, by cyclization of the bis (tert-butylamino) methylphosphine with phosphorus halides or by Grignard reaction of P-chloro-diazadiphosphetidines. 2 and 5 can be oxidized to the diazadiphosphetidine-mono- and -dichalcogenides 6 and 7 (X = O Te), trimethylsilylazide oxidizes 5 to the diazadiphosphetidine-diimide 7e. With methylhalides 2 and 5 form the cyclic phosphonium salts 8 and 9.2 and AlCl3 yield the first 1,3,2,4-Diazadiphosphetidine-2-ylium salt 12, a phosphorus nitrogen compound in which one phosphorus atom has the coordination number two.
46 citations