100281-24-1

Upstream product

• 111888-01-8 1,2-bis(2,4,6-tri-tert-butylphenyl)3,3-dichloro diphosphirane 
• 100281-25-2 C₁₉H₃₀Cl₃P 
• 56-23-5 tetrachloromethane 
• 96481-35-5 dimesitylgerma(2,4,6-tri-tert-butylphenyl)phosphene 
• 111888-01-8 (1R,2R)-3,3-Dichloro-1,2-bis-(2,4,6-tri-tert-butyl-phenyl)-diphosphirane 
• 91425-16-0 2,2-diphenylethenylidene-P-(2,4,6-tri-tert-butylphenyl)phosphine 
• 67-66-3 chloroform 
• 129715-34-0 trans-2,2-Dichloro-3-phenyl-1-(2,4,6-tri-t-butylphenyl)-1-phosphirane 
• 105020-24-4 4,4-Diphenyl-1-(2,4,6-tri-t-butylphenyl)-1-phospha-1,2,3-butatriene 
• 99364-92-8 (E)-benzylidene(2,4,6-tri-tert-butylphenyl)phosphane 
• 83466-54-0 Bis(2,4,6-tri-tert-butylphenyl)diphosphen 
• 79074-00-3 2,4,6-tri-t-butylphenylphosphonous dichloride 

Downstream Products

• 126976-49-6 C₃₇H₅₉ClP₂ 
• 100938-86-1 2-(2,4,6-tri-tert-butylphenyl)phosphaacetylene 
• 122345-83-9 C₁₉H₂₉ClLiP 
• 92957-42-1 E-2-chloro-1-(2,4,6-tri-t-butylphenyl)-1-phospha-ethylene 
• 252573-00-5 C₃₈H₅₈Cl₂P₂ 
• 360559-46-2 2-chloro-3,3-diphenyl-1-(2,4,6-tri-tert-butylphenyl)-1,3-diphosphapropene 
• 639505-19-4 (Z)-2-chloro-3,3-bis(diisopropylamino)-1-(2,4,6-tri-tert-butylphenyl)-1,3-diphosphapropene 
• 221136-85-2 C₄₀H₅₇PSi 
• 221137-25-3 C₄₀H₅₇ClLiPSi 

Relevant academic research and scientific papers

SYNTHESIS AND REACTIVITY OF P-SUPERMESITYL-C-HALOPHOSPHAALKENES

The synthesis of the title compounds in high yield via a new route are presented and their reaction with n-butyllithium and subsequent functionalisations is discussed.

Reaction of Dichlorocarbene with Sterically Protected Phosphabutatriene. Formation of a Stable Dimethylenephosphirane

The reaction of dichlorocarbene with 4,4-diphenyl-1-(2,4,6-tri-t-butylphenyl)-1-phosphabutatriene gave 2-dichloromethylene-3-diphenylmethylene-1-(2,4,6-tri-t-butylphenyl)-1-phosphirane via 2,2-dichloro-3-(2,2-diphenylethenylidene)-1-(2,4,6-tri-t-butylphenyl)-1-phosphirane. Keywords: dichlorocarbene; phosphabutatriene; phospharadialene; phosphirane; steric protection

Reactions of Dichlorocarbene with Sterically Protected 1-Phosphaallene and 1,3-Diphosphaallene

Dichlorocarbene reacted with sterically protected 1-phosphaallene and 1,3-diphosphaallene to give a methylene-phosphirane and a methylene-diphosphirane, respectively; the former phosphirane was converted to 1-phosphabutatriene with butyllithium and the st

Synthesis and Reactions of P-Supermesityl-C-halophosphaalkenes

C-Halophosphaalkenes (1, 2) were prepared in high yield by a one-pot synthesis from HCX3 or CI4 and Mes*PCl2 (Mes* = supermesityl = 2,4,6-tri-tert-butylphenyl).The C-iodophosphoaalkenes Mes*P=Cl2 (1c) and Mes*P=CHI (2c) undergo halogen-metal exchange with n-BuLi at low temperatures.The resulting carbenoids Mes*P=CILi (11c) and Mes*P=CHLi (6) reacted with ClMMe3 (M = Si, Ge, Sn) to give Mes*P=CIMMe3 or Mes*P=CHMMe3 (8-10), respectively.Further reaction of (Z)-13 and (Z)-14 with n-BuLi and ClMMe3 gave Mes*P=C(MMe3)2 (18: M = Ge; 19: M = Sn).The carbenoid (Z)-11c decomposed at -85 deg C; instead of the expected "phosphaisonitrile" Mes*P=C: (21), only Mes*CP (15) was obtained which lends experimental support to the theoretically predicted instability of 21.Key Words: Phosphaalkenes, C-halo, C-metal / "Phospha-isonitrile" / Phosphinylidenemethylene / Phosphaalkyne, E/Z isomers

Photochemistry of Functionalized Diphosphiranes

The structure of the functionalized trans-diphosphiranes 1a-e, obtained by reaction of halogenocarbenes with the trans-diphosphene is confirmed by X-ray diffraction.The photolysis of 1a-e lead to the functionalized cis- and trans-1,3-diphosphapropenes 2a-e as major products, via the diphosphiranyl 7 and the diphosphapropenyl 8 radical intermediates.The latter are characterized by ESR spectroscopy using the spin-trap method.The trans configuration of 2a is also confirmed by X-ray diffraction.The mechanism of the ring-opening, involving P-P bond rupture, is discussed.

Reaction of Dichlorocarbene with Phosphaethylenes. Preparation of Phosphaallene from Phosphaethylene via Dichlorophosphirane

The reaction of dichlorocarbene with (E)- an (Z)-2-phenyl-(2,4,6-tri-t-butylphenyl)phosphaethylenes gave trans-dichlorophosphirane which was converted to phosphaallene with t-butyllithium, while 2,2-diphenylphosphaethylene gave a vinylphosphaindane derivative.

CATIONIC RING OPENING OF FUNCTIONALIZED DIPHOSPHIRANES:

The functionalized diphosphiranes 1a-c, in presence of Lewis acid, undergo two kinds of reaction:the ring opening leading to the phosphenium-phosphonium ion 2a-c obtained according to an electrocyclic reaction and the fragmentation giving phosphaalkene 3a

NEW ASPECTS OF THE REACTIVITY OF THE FIRST STABLE GERMA- AND STANNAPHOSPHENES

Various aspects of the reactivity of the first stable germaphosphene 1 and stannaphosphene 6 are described.

A GENERAL METHOD FOR PREPARING DIPHOSPHIRANES

Diphosphiranes 3a-3f are obtained by action of diazo derivatives and carbenes on the trans-diphosphene 1.The structures are elucidated by spectroscopic methods.In all cases the cycloaddition reaction is stereoselective.