63832-87-1Relevant academic research and scientific papers
Titanium (IV) catalysis in the reduction of phosphine oxides
Coumbe, Tristan,Lawrence, Nicholas J.,Muhammad, Faiz
, p. 625 - 628 (2007/10/02)
Phosphine oxides can be reduced by triethoxysilane, or more conveniently polymethylhydrosiloxane, and catalytic titanium (IV) isopropoxide and provides a system for the efficient one-pot generation of phosphonium salts; the reduction occurs with retention of configuration at phosphorus.
Analytical Problems of the Reaction between Polymer Supported Phosphino Groups and Methyl Iodide
Paetzold, E.,Oehme, G.,Pracejus, H.
, p. 429 - 436 (2007/10/02)
A series of different crosslinked styrene-divinylbenzene-copolymers bearing diphenyl phosphinomethyl groups was reacted with methyl iodide in ethanol.The quaternization has been controlled by elementary analysis of P and I and by ir spectroscopy using a key band at 1123/cm.The spectroscopic method gave satisfactory results with sample amounts of 5 mg polymer in KBr discs.In resins containing up to 7 percent divinylbenzene the methylation was almost quantitative within 1 h refluxing.However, in highly crosslinked polymers (>10percent DVB) containing residues of free chloromethyl groups and intraresin quaternized phosphino groups we observed side reactions in boiling ethanol.These could be avoided by performing the methylation in toluene at room temperature.
Role of Through Space 2p-3d Overlap in the Alkylation of (ω-N,N-Dimethylaminoalkyl)diphenylphosphines and in the Alkaline Decomposition of Related Quaternary Phosphonium Salts
McEwen, William E.,Smith, Joanne H.,Woo, Edward J.
, p. 2746 - 2751 (2007/10/02)
A series of (ω-N.N-dimethylaminoalkyl)diphenylphosphines has been prepared and subjected to reaction with benzyl chloride in benzene-methanol (60:40 v/v) at 31.0 +/- 0.1 deg C.Each of quaternization reactions was found to follow the second-order rate law,
