64419-24-5Relevant articles and documents
New variants of polymorphism in banana-shaped mesogens with cyano-substituted central core
Wirth,Diele,Eremin,Pelzl,Grande,Kovalenko,Pancenko,Weissflog
, p. 1642 - 1650 (2001)
A new series of achiral five-ring banana-shaped compounds is presented which exhibit a cyano substituent in the 4-position of the central core. It follows from X-ray investigations and from NMR, microscopical and electro-optical measurements that all members of the series do not only form the chiral B2 phase characteristic of a bent molecular shape, but also SmA and SmC (in one case also nematic) phases. The electro-optical studies on the B2 phase prove an antiferroelectric ground state which can be switched into ferroelectric states. On the base of the experimental data plausible structure models have been proposed.
Metal-Free Regioselective Monocyanation of Hydroxy-, Alkoxy-, and Benzyloxyarenes by Potassium Thiocyanate and Silica Sulfuric Acid as a Cyanating Agent
Sardarian, Ali Reza,Dindarloo Inaloo, Iman,Modarresi-Alam, Ali Reza,Kleinpeter, Erich,Schilde, Uwe
, p. 1748 - 1756 (2019/02/05)
A novel and efficient metal- and solvent-free regioselective para-C-H cyanation of hydroxy-, alkoxy-, and benzyloxyarene derivatives has been introduced, using nontoxic potassium thiocyanate as a cyanating reagent in the presence of silica sulfuric acid (SSA). The desired products are obtained in good to high yields without any toxic byproducts.
Perfluoroalkanosulfonyl fluoride: A useful reagent for dehydration of aldoximes to nitriles
Yan, Zhao-Hua,Tian, Huan,Zhao, Dong-Dong,Jin, Hong-Ai,Tian, Wei-Sheng
, p. 96 - 98 (2016/01/25)
The reaction of a variety of aldoximes with perfluoroalkanosulfonyl fluoride in the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) in dichloromethane smoothly generated the corresponding nitriles in 70%-95% yields.