Monofunctionalized tridecachlorodiphenyl (2-pyridyl)methyl radicals. Synthesis and spectral analysis
摘要:
Highly chlorinated diphenyl(2-pyridyl)methyl radicals and their alpha-H precursors with a carboxy, chlorocarbonyl, or allyloxycarbonyl substituent in the 4-position of one phenyl ring have been synthesized. All of them are stable red solids, completely dissociated (magnetic susceptibility), decomposing when melting (200-240-degrees-C). Their ESR, UV-VIS and IR spectra are given.
Monofunctionalized tridecachlorodiphenyl (2-pyridyl)methyl radicals. Synthesis and spectral analysis
摘要:
Highly chlorinated diphenyl(2-pyridyl)methyl radicals and their alpha-H precursors with a carboxy, chlorocarbonyl, or allyloxycarbonyl substituent in the 4-position of one phenyl ring have been synthesized. All of them are stable red solids, completely dissociated (magnetic susceptibility), decomposing when melting (200-240-degrees-C). Their ESR, UV-VIS and IR spectra are given.
Process for preparing 2,3,4,5-tetrachloro-6 (trichloro methyl) pyridine
申请人:MAKHTESHIM CHEMICAL WORKS LIMITED
公开号:EP0283531A1
公开(公告)日:1988-09-28
Heptachloropicoline is prepared by continuously reacting chlorine in the gas phase at an elevated temperature with one or more lower-chlorinated 6-trichloromethyl pyridines in the presence of an effective amount of ferric chloride.