o-(Trifluoromethyl)dibenzofuranium salts; its stability and reactivity.

Accession number;99A0711853
Title;o-(Trifluoromethyl)dibenzofuranium salts; its stability and reactivity.
Author; ADACHI KENJI (Daikin Ind., Ltd.) ISHIHARA SUMI (Daikin Ind., Ltd.) UMEMOTO TERUO (Daikin Ind., Ltd.)
Journal Title;Fusso Kagaku Toronkai Koen Yoshishu
Journal Code:F0135B
ISSN:
VOL.22nd;NO.;PAGE.86-87(1998)
Figure&Table&Reference;
Pub. Country;Japan
Language;Japanese
Abstract;Previously we reported the first detection of the reactive trifluoromethyloxonium salts generated by the photolysis of the 2'-(trifluoromethoxy)biphenyl-2-diazonium salts in CH2Cl2 at low temperature and the satisfactory O- or N-trifluoromethylation of alcohol, phenol and amine by using 2-t-butyl-O-(trifluoromethyl)dibenzofuranium salt. Now we have measured half life of the reactive O-(trifluoromethyl)dibenzofuranium salt at -60 .DEG.C. and clarified the effect of the substituent on the benzene ring and the counter anion for the stability of O-(trifluoromethyl)dibenzofuranium salt. (author abst.)