82532-71-6Relevant articles and documents
Alkylations of Arylboronic Acids including Difluoroethylation/Trifluoroethylation via Nickel-Catalyzed Suzuki Cross-Coupling Reaction
Zhang, Xiaofei,Yang, Chunhao
supporting information, p. 2721 - 2727 (2015/09/01)
An efficient alkylation method of functionalized alkyl halides under mild nickel-catalyzed C(sp3)-(sp2) Suzuki cross-coupling conditions is described. The features of this approach are excellent functional group compatibility, low cost nickel catalyst, and the use of a mild base. This is also the first successful example of the nickel-catalyzed direct 2,2-difluoroethylation or 2,2,2-trifluoroethylation of aryl-/heteroarylboronic acids.
Mesomorphic Properties of a Homologous Series of Aryl β-Diketones and a Few Related Derivatives
Sadashiva, B. K.,Rao, P. Rani,Srikanta, B. S.
, p. 103 - 110 (2007/10/02)
A new homologous series of nine 1,3-diones have been prepared and their mesomorphic properties studied.The first four homologues in the series exhibit the classical nematic phase and a smectic phase, the next five showing only a smectic phase.The optical textures, miscibility and the X-ray data establish that the smectic phase is of the A1 type.This is perhaps the first instance of a β-diketone exhibiting a nematic as well as a smectic A1 phase.In addition, a few similar isomeric β-diketones have also been synthesized to study the terminal substituent effect on the mesomorphic properties.Keywords: β-diketone, smectic A phase, isomerism, substituent effect.