作者:Rowsey, Rylan A.、Hilgar, Jeremy D.、Romero, Nathan A.
DOI:10.1021/acs.orglett.4c01549
日期:——
N-Heterocycliccarbene pentafluorophosphorus (NHC-PF5) adducts are six-coordinate phosphorus(v) compounds with emerging applications but poor synthetic accessibility. We have developed a simple and high yielding protocol for synthesizing imidazolylidene NHC-PF5 adducts from silylimidazolium hexafluorophosphate salts. Using this methodology, we have prepared a series of NHC-PF5 adducts in high yields
Katritzky, Alan R.; Slawinski, Jaroslaw J.; Brunner, Frederic, Journal of the Chemical Society. Perkin transactions I, 1989, p. 1139 - 1145
作者:Katritzky, Alan R.、Slawinski, Jaroslaw J.、Brunner, Frederic、Gorun, Sergiu
DOI:——
日期:——
Carpenter, Andrew J.; Chadwick, Derek J.; Ngochindo Raphael I., Journal of Chemical Research, Miniprint, 1983, # 8, p. 1913 - 1941
作者:Carpenter, Andrew J.、Chadwick, Derek J.、Ngochindo Raphael I.
DOI:——
日期:——
Synthesis of 2,5-dilithio-1-methylimidazole
作者:Gideon Shapiro、Martin Marzi
DOI:10.1016/s0040-4039(00)79166-0
日期:1993.5
C5 to C2 position migrations of 2-trialkylsilyl and thiophenyl groups have been observed upon lithiation at the C5-position of corresponding C2-substituted 1-methylimidazoles. Double bromine-lithium exchange of 1-methyl-2,5-dibromoimidazole (5) affords a facile, quantitative and unequivocal synthesis of 2,5-dilithio-1-mediyl-imidazole (4). Reaction of 4 with one equivalent of DMF occurs selectively at the C5 position to give 1-methyl ole-5-carboxaldehyde (1).
EFFENBERGER, FRANZ;ROOS, MICHAEL;AHMAD, ROSHAN;KREBS, ANDREAS, CHEM. BER., 124,(1991) N, C. 1639-1650
作者:EFFENBERGER, FRANZ、ROOS, MICHAEL、AHMAD, ROSHAN、KREBS, ANDREAS