Ferrocenylmethylphosphonate formation. Synthesis, spectroscopy and molecular structure
摘要:
Reaction of ferrocenylmethanol, FcCH(2)OH, with beta-cyano-N,N-diisopropyl chlorophosphoramidite in dichloromethane yields the ferrocenylmethylphosphonate derivative, FcCH(2)P(O)(N(iPr)(2))(OCH2CH2CN), 2a. The crystal and molecular structure of 2a is presented. P-31 NMR data suggest that this is formed from FcCH(2)OP(N(iPr)(2))(OCH2CH2CN) via a Michaelis-Arbusov-type rearrangement. Similar behaviour was also observed for 1,2-phenylene chlorophosphite and diethyl chlorophosphite. (C) 1998 Elsevier Science Ltd. All rights reserved.