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Studies of the Reactions between P-donors and [$(exo-6-R-\eta^5-2-MeO{\cdot}C_6H_5)Mn(CO)_2NO]PF_6$

  • Taeg Hwan Hyeon (Department of Chemistry, College of Natural Sciences, Seoul National University) ;
  • Taek-Mo Chung (Department of Chemistry, College of Natural Sciences, Seoul National University) ;
  • Young Keun Chung (Department of Chemistry, College of Natural Sciences, Seoul National University)
  • Published : 1989.12.20

Abstract

Synthetic studies have been carried out for the addition or substitution of phosphorus nucleophiles to the cation $[(exo-6-R-{\eta}^ {5_-}2-MeO-C_6H_5)Mn(CO)_2NO]PF_6,$ 2. $PPh_3$ reacts with 2 to yield the CO displaced product and $MePPh_2$ attacks the dienyl ring of 2 to yield the phosphonium adduct or the metal to give the CO displaced depending upon the reaction temperatures. Nucleophilic addition of HPPh2 to the dienyl ring of 2 gives a neutral substituted product. $P(OMe)_3$ reacts with 2 to yield a mixture of ring adduct and CO displaced product at room temperature. $At - 20^{\circ}C,\;P(OMe)_3$ attacks the dienyl ring of 2 to give a posphonium adduct, which underwent Arbuzov reaction. This reaction affords a new route to the phosphonate complexes.

Keywords

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Cited by

  1. Synthesis and Reactivity of [(η6-Biphenylene)Mn(CO)3]+ vol.3, pp.1, 1997, https://doi.org/10.1002/chem.19970030113