58201-66-4Relevant articles and documents
Interaction of difluoromethylene phosphobetaine with heteroatom-centered electrophiles
Trifonov, Alexey L.,Panferova, Liubov I.,Levin, Vitalij V.,Volodin, Alexander D.,Korlyukov, Alexander A.,Dilman, Alexander D.
, p. 78 - 82 (2019/03/19)
A series of difluorinated phosphonium salts were obtained by reaction of difluoromethylene phosphobetaine with halogenating reagents, as well as arylsulfenyl and arylselenyl chlorides. The reaction proceeds via decarboxylation of the phosphobetaine followed by trapping of the difluorinated phosphorus ylide by heteroatom-centered electrophiles. The crystal structures of the phosphonium salts were studied by X-ray diffraction analysis. For the salt containing the CF2I group and iodide counterion, the I?I interaction was identified in the solid state. The nature of this halogen bond was evaluated by quantum chemical calculations.
Substituted imidazo[1,5-A][1,2,4]triazolo[1,5-D][1,4]benzodiazepine derivatives
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Page/Page column 22, (2010/11/08)
The present invention is concerned with substituted imidazo[1,5-a][1,2,4]triazolo[1,5-d][1,4]benzodiazepine derivatives of the formula I wherein R1 is hydrogen, halogen, lower alkyl, lower alkyl substituted by halogen, lower alkoxy, lower alkox
Substituent Effects on the Structure of Spiropentane
Irngartinger, Hermann,Gries, Stefan,Klaus, Philip,Gleiter, Rolf
, p. 2503 - 2512 (2007/10/02)
In order to investigate the influence of substituents on the bond lengths of the spiropentane framework, the molecular structures of the spiropentane derivates 1-7 have been determined by X-ray analysis.The ? acceptor (CO, CO2R, Ph) shorten the distal bon
