Reaktionen am koordinierten Trichlormethylisocyanid
摘要:
Cr(CO)5CNCCl3 (3) reacts with phosphane (PPh3, PMe2Ph, PEt3) under aprotic conditions to give the Cr(CO)5-coordinated semiylidic isocyano(phosphoraneylidene)methylphosphoniumchlorides 4, 13. In the presence of (traces of) water, however, mainly (isocyano)methylphosphonium complexes 5, 10, 11 are formed. In a side reaction, 3 is reduced to give Cr(CO)5CNCHCl2 which becomes the main product when the reaction is carried out in alcohol, acetone, or in the presence of a carboxylic acid (e.g. (PhCOOH).
Reaktionen am koordinierten Trichlormethylisocyanid
摘要:
Cr(CO)5CNCCl3 (3) reacts with phosphane (PPh3, PMe2Ph, PEt3) under aprotic conditions to give the Cr(CO)5-coordinated semiylidic isocyano(phosphoraneylidene)methylphosphoniumchlorides 4, 13. In the presence of (traces of) water, however, mainly (isocyano)methylphosphonium complexes 5, 10, 11 are formed. In a side reaction, 3 is reduced to give Cr(CO)5CNCHCl2 which becomes the main product when the reaction is carried out in alcohol, acetone, or in the presence of a carboxylic acid (e.g. (PhCOOH).
Fehlhammer, Wolf Peter; Degel, Fritz; Beck, Gerhard, Chemische Berichte, 1987, vol. 120, p. 461 - 470
作者:Fehlhammer, Wolf Peter、Degel, Fritz、Beck, Gerhard
DOI:——
日期:——
Fehlhammer, Wolf P.; Beck, Gerhard, Zeitschrift fur Naturforschung, B: Chemical Sciences, 1989, vol. 44, # 11, p. 1414 - 1420
作者:Fehlhammer, Wolf P.、Beck, Gerhard
DOI:——
日期:——
Pentacarbonylchromium complexes containing the fluorinated isocyanide ligands H2FCNC and HF2CNC
作者:Dieter Lentz、Dagmar Preugschat
DOI:10.1016/0022-328x(92)85046-y
日期:1992.9
Pentacarbonyl(fluoromethyl isocyanide)chromium and pentacarbonyl(difluoromethyl isocyanide)chromium have been prepared. The vibrational spectroscopic data for the compounds indicate that these isocyanide ligands have a lower pi-acceptor/sigma-donor ratio than trifluoromethyl isocyanide.
Beck, Gerhard; Fehlhammer, Wolf P., Angewandte Chemie, 1988, vol. 100, p. 1391 - 1394
作者:Beck, Gerhard、Fehlhammer, Wolf P.
DOI:——
日期:——
Reaktionen am koordinierten Trichlormethylisocyanid
作者:Samyoung Ahn、Gerhard Beck、Wolf Peter Fehlmanner
DOI:10.1016/0022-328x(91)80222-6
日期:1991.11
Cr(CO)5CNCCl3 (3) reacts with phosphane (PPh3, PMe2Ph, PEt3) under aprotic conditions to give the Cr(CO)5-coordinated semiylidic isocyano(phosphoraneylidene)methylphosphoniumchlorides 4, 13. In the presence of (traces of) water, however, mainly (isocyano)methylphosphonium complexes 5, 10, 11 are formed. In a side reaction, 3 is reduced to give Cr(CO)5CNCHCl2 which becomes the main product when the reaction is carried out in alcohol, acetone, or in the presence of a carboxylic acid (e.g. (PhCOOH).