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Reactions of ferrocene-derived bis(hydroxymethyl) phosphine sulfides FcCH(R)P(S)(CH2OH)2 (R = H, CH3)with cyclic thionylphosphazenes:: crystal structures of FcCH2P(S)(CH2O)2PN(NPCl2)[NS(O)Ph] and FcCH2P(S)(CH2O)2PN2P[N(Me)CH2]2[NS(O)Ph] (Fc = ferrocenyl)

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JOURNAL OF ORGANOMETALLIC CHEMISTRY
卷 637, 期 -, 页码 382-389

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ELSEVIER SCIENCE SA
DOI: 10.1016/S0022-328X(01)00939-1

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ferrocene; hydroxymethyl phosphine sulfide; thionylphosphazene; spirocycles

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The cyclic six-membered thionylphosphazenes, (NPCl2)(2)[NS(O)X] X = Cl (1), Ph (2) and 4-Cl-C6H4 (3) as well as the monospirocyclic derivatives (NPCl2)NP[N(Me)CH2](2)[NS(O)Ph] (4) and (NPCl2)NP[N(Me)CH2](2)[NS(O)4-Cl-C6H4] (5) were synthesized. Reactions of these compounds were carried out with dilithiated ferrocene-derived hydroxymethyl phosphine sulfides, FcCH(2)P(S)(CH2OH)(2) (6) and FcCH(CH3)P(S)(CH2OH)(2) (7) under different conditions. Reactions of 1 with 6 and 7 did not yield any desired products. In contrast, 1:1 reactions of 2 with 6 and 7 readily yielded air stable monospirocyclic compounds FcCH(2)P(S)(CH2O)(2)PN(NPCl2)[NS(O)Ph] (8) and FcCH(CH3)P(S)(CH2O)(2)PN(NPCl2)[NS(O)Ph] (9), respectively. Controlled reactions of 4 and 5 with 6 were performed in which dispirocyclic compounds FcCH(2)P(S)(CH2O)(2)PN2P[N(Me)CH2](2)[NS(O)Ph] (10) and FcCH(2)P(S)(CH2O)(2)PN2P[N(Me)CH2](2)[NS(O)4-Cl-C6H4] (11) were isolated. The product obtained in the 1:1 reaction of HOCH2(CF2)(2)CH2OH with (NPCl2)(2)[NS(O)4-Cl-C6H4] (3) when reacted with 6 resulted in the dispirocyclic compound FcCH(2)P(S)[(CH2O)(2)PN2P (OCH2CF2)(2)][NS(O)4-Cl-C6H4] (12). Compound 12 was found to exist as isomers. To confirm the formation of isomers, {[CH2N(Me)](2)PN2P(OCH2CF2)(2)}[NS(O)Ph] (13) was synthesized by the reaction of 4 with HOCH2(CF2)(2)CH2OH which was also found to exist as isomers. Attempts to synthesize intermolecular bridged compounds of 2 with 6 and 7 resulted in compounds 8 and 9 exclusively. The crystal structures of compounds 8 and 10 were determined. (C) 2001 Elsevier Science B.V. All rights reserved.

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