84389-91-3Relevant academic research and scientific papers
Synthesis of Substituted Dibenzophospholes. Part 3. Synthesis of 4,6-Diaryldibenzophospholes from m-Quaterphenyls
Cornforth, John,Ridley, Damon D.,Sierakowski, Andrew F.,Uguen, Daniel,Wallace, Timothy W.
, p. 2317 - 2332 (2007/10/02)
Some observations on T.Cohen's method for coupling 2-iodonitrobenzenes to 2,2'-dinitrobiphenyls are reported.A general method for making 2',2"-di-iodo-m-quaterphenyls from the 2',2"-diamines, reported in Part 2, features decomposition of the bis-diazonium iodomercurates to dibenziodolium iodomercurates and pyrolysis of the latter.The procedure can be used to prepare other aryl iodides. 2',2"-Di-iodo-m-quaterphenyls, on succsessive treatment with butyl-lithium, phosphorus trichloride, water, and hydrogen peroxide, yield 4,6-diaryl-5-hydroxydibenzophosphole 5-oxides, three of which were prepared.Te structures of two derivatives of these, 2,8-dichloro-3,7-di(2-hydroxyethoxy)-5-methoxy-4,6-diphenyldibenzophosphole 5-oxide and 5-hydroxy-3,7-dimethoxy-4,6-di-(4-methoxy-3,5-di-t-butylphenyl)dibenzophosphole 5-oxide, have been determined by X-ray crystallography and are reported in the Appendix.
