Reference

Cyclohexanecarbonitriles and their use as components for liquid crystal compositions

Cyclohexanecarbonitriles and their use as components for liquid crystal compositions. Boller, Arthur; Petrzilka, Martin; Schadt, Martin (Hoffmann-La Roche, F., und Co. A.-G., Switz.). Eur. Pat. Appl. EP 172360 A2 26 Feb 1986, 71 pp. DESIGNATED STATES: R: AT, BE, CH, DE, FR, GB, IT, LI, NL, SE. (European Patent Organization) CODEN: EPXXDW. CLASS: ICM: C07C121-46. ICS: C09K019-30. APPLICATION: EP 85-107913 26 Jun 1985. PRIORITY: CH 84-3152 29 Jun 1984; CH 85-1638 17 Apr 1985. DOCUMENT TYPE: Patent CA Section: 74 (Radiation Chemistry, Photochemistry, and Photographic and Other Reprographic Processes) Section cross-reference(s): 24, 75 Liq. crystal compns. for use in electrooptical display devices are described. The compns., which have a neg. dielec. anisotropy, contain 31 cyclohexanecarbonitrile deriv. Thus, a liq. crystal compn. contg. p-ethoxyphenyl trans-4-butylcyclohexanecarboxylate 8.54, p-methoxyphenyl trans-4-pentylcyclohexanecarboxylate 7.54, 4-ethoxy-1-[2-(trans-4-pentylcyclohexyl)ethyl]benzene 9.92, 1-[2-(trans-4-butylcyclohexyl)ethyl]-4-(trans-4-pentylcyclohexyl)benzene 11.00, 4-[2-(trans-4-butylcyclohexyl)ethyl]-4'-(trans-4-pentylcyclohexyl)-1,1'-ethy lenedibenzene 7.00, 1-cyano-1-(3-butenyl)-cis-4-(trans-4-butylcyclohexyl)cyclohexane 20.00, 1-cyano-1-(3-butenyl)-cis-4-(trans-4-pentylcyclohexyl)cyclohexane 10.00, and 1-cyano-1-(3-butenyl)-cis-4-(trans-4-heptylcyclohexyl)cyclohexane 26.00 wt.% showed a m.p. < -20°, a clearing point of 73°, a nematic phase, a dielec. 106433-23-2 is just another one chemical used in this study. anisotropy of -4, a homeotropic threshold potential of 1.75 V, and an optical anisotropy of 0.06 (22°). .

Heterocyclic synthesis with malonyl dichloride and nitriles

Heterocyclic synthesis with malonyl dichloride and nitriles. Zaidi, N. A.; Al-Katti, J. M.; Saeed, F. H. (Chem. Dep., Fac. Sci., Binghazi, Libya). Pak. J. Sci. Ind.Several substances with their cas registry numbers 5500-21-0 and 80683-13-2 may be metioned in this study. Res., 26(1), 7-12 (English) 1983. CODEN: PSIRAA. ISSN: 0030-9885. DOCUMENT TYPE: Journal CA Section: 28 (Heterocyclic Compounds (More Than One Hetero Atom)) Section cross-reference(s): 27 CH2(COCl)2 reacted with cyclopropanecarbonitrile to give 2-chloro-3-(2-chloroethyl)-4-hydroxy-6-pyridone, which cyclized on recrystn. with EtOH to give the furanopyridine I. Cyclohexanecarbonitrile and CH2(COCl)2 gave a mixt. of 2-cyclohexyl-4-chloro-6-pyrimidone and pyranooxazine II (R = cyclohexyl). CH2(COCl)2 and 1-cyclopentanecarbonitrile and Me3CCOCN gave II (R = 1-phenyl-1-cyclopentyl, Me3C). CH2(COCl)2 and MeCOCN gave the lactam III. .