摘要:
2,5-Diphenylphosphacymantrene (1) reacts with solid KOH in the presence of crown ethers in C6H6 or CH2Cl2 at room temperature adding OH nucleophile to the phosphorus atom to afford anionic complexes [(CO)(3)Mn-eta(4)-2,5-Ph2H2C4P(=O)H] [K-Crown](+), where Crown = 18-crown-6 (2) or dicyclohexyl-18-crown-6 (3). Complexes 2 and 3 are characterized by H-1, P-31, C-13 NMR and IR-spectra. The structure of 2 is established by X-ray crystal structure data. (C) 2009 Elsevier B. V. All rights reserved.