207805-59-2Relevant academic research and scientific papers
Some insertion reactions of the Mn-C bond of cyclomanganated triphenylphosphine chalcogenides
Depree, Gary J.,Main, Lyndsay,Nicholson, Brian K.
, p. 281 - 291 (2007/10/03)
The complex Ph2P((CO)4 (1b) reacts with alkenes CH2=CH-R (R=COOMe, CN, C(O)Me) in refluxing MeCN or MeOH to give substituted derivatives of Ph3P=S with a CH2CH2R group introduced in the ortho position of one phenyl ring. Other species are also formed including 3-cyano-4-(2-diphenylthiophosphinyl)phenyl)-2-buten-2-amine (characterised by an X-ray structure determination) from the reaction of 1b with CH2=CHCN in MeCN. In contrast, reaction with alkynes C2(COOMe)2 or C2H(COOMe) allowed isolation of the new seven-membered metallocycle arising from insertion of the alkyne into the Mn-C bond of 1b. All three Ph2P((CO)4 (E=O, S, Se) readily insert SO2; a structure determination of the product with E=Se shows a six-membered metallocyclic ring which incorporates five different elements.
