121554-14-1Relevant articles and documents
Two ways of preparing benzonitriles using BrCCl3-PPh3 as the reagent
Jasem, Yosef Al,Barkhad, Mohamed,Khazali, Mona Al,Butt, Hifsa Pervez,El-Khwass, Noha Ashraf,Azani, Mariam Al,Hindawi, Bassam Al,Thiemann, Thies
, p. 80 - 84 (2014/03/21)
Benzamides were converted into benzonitriles with BrCCl3- PPh3-Et3N in CH2Cl2 in an Appel-type reaction. Benzaldoximes could be transformed to benzonitriles under identical conditions. It was found that the reaction system BrCCl3-(2 equiv.)PPh3 was also suitable for these transformations with PPh 3 replacing Et3N.
The Synthesis and Transition Temperatures of Some Lateral Cyano-Substituted-1,1':4',1''-terphenyls
Hird, Michael,Gray, George W.,Toyne, Kenneth J.
, p. 205 - 221 (2007/10/02)
In recent years we have used palladium-catalysed cross-coupling procedures to prepare a large number of very interesting lateral mono- and di-fluoro-substituted terphenyls.Similar methodology has been applied in the synthesis of lateral cyano-substituted terphenyls to assess the extent to which the mesophases of such systems can tolerate the larger cyano group; the synthetic routes to these compounds are discussed in detail.The compounds with the lateral cyano-substituent in the centre ring have very low melting points and liquid crystal phases exhibited (SC, SA and nematic) are dependent on the terminal substituents.The compounds with the cyano-substituent at the edge of the terphenyl core are still quite low melting and they have very wide SA ranges. Keywords: lateral cyano-substitution, 1,1':4',1''-terphenyls, palladium-catalysed cross-coupling