| | 1 | Author
| HansH. Karsch | Requires cookie* | | | Title
| Funktionelle Trimethylphosphanderivate, XVII [1]  | | | | Abstract
| Methyl-bis(dimethylphosphinomethyl)phosphan, (Me2PCH2)2PMe Functional Derivatives of Trimethylphosphane, XVII [1] Methyl-bis(dimethylphosphinomethyl)phosphane, (Me2PCH2)2PMe (Me 2 PCH2)2PMe (3) is obtained from MePCl 2 (2a) or MeP(OPh) 2 (2b) and LiCH 2 PMe 2 (1). The oxides [Me 2 P(0)CH 2 ] 2 PMe (4) and [Me 2 P(0)CH 2 ] 2 P(0)Me (5), are formed on the reaction with air. Quaternisation with Mel gives the salts [(Me3PCH2)2PMe]l2 (6) and [(Me3PCH2)2PMe2]l3 (12). For comparison, also the isoelectronic (Me3SiCH2)2PMe (7), and (Me3SiCH2)2P 4 Bu (8), are synthesized and transformed to their methylphosphonium salts 10 and 11. WithCH 2 Br 2 , 3 forms the six-membered heterocycle [MeP(CH 2 PMe2)2CH 2 ]Br2 (13 a), which could not be isolated in a pure state, however. 3 may be metalated by LiBu: Li[Me2PCHP(Me)CH2PMe2] (15), is obtained, but a second metalation step could not be observed. The hydrolysis of 12 under unusual mild conditions (H2O or H2O/CH3OH) gives [Me2P(0)CH 2 PMe3]I (16), and [Me 4 P]I (17), as main products. Properties and NMR data of the new compounds are described. | | | |
Reference
| Z. Naturforsch. 37b, 284—291 (1982); eingegangen am 12. Oktober 1981 | | | |
Published
| 1982 | | | |
Keywords
| Triphosphane (PCPCP), Phosphonium Salts, Hydrolysis, NMR Spectra | | | |
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| default:Reihe_B/37/ZNB-1982-37b-0284.pdf | | | | Identifier
| ZNB-1982-37b-0284 | | | | Volume
| 37 | |
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