Detail of "13139-86-1"

Reference

Carbocyclic compounds with liquid-crystal properties

Carbocyclic compounds with liquid-crystal properties. Sugimori, Shigeru; Kojima, Tetsuhiko (Chisso Corp. , Japan). Eur. Pat. Appl. EP 84974 A1 3 Aug 1983, 44 pp. DESIGNATED STATES: R: CH, DE, GB, LI. (English). (European Patent Organization). CODEN: EPXXDW. CLASS: IC: C07C013-28; C07C043-21; C07C043-215; C07C043-184; C09K003-34. ICA: C07C035-21; C07C025-18; C07F003-02; C07C049-613; C07C069-157; C07C043-23. APPLICATION: EP 83-300354 24 Jan 1983. PRIORITY: JP 82-8291 22 Jan 1982; JP 82-23438 16 Feb 1982; JP 82-36100 8 Mar 1982; JP 82-54080 1 Apr 1982; JP 82-54081 1 Apr 1982; JP 82-77928 10 May 1982; JP 82-85272 20 May 1982; JP 82-115181 2 Jul 1982; JP 82-115182 2 Jul 1982. DOCUMENT TYPE: Patent CA Section: 75 (Crystallography and Liquid Crystals) Liq. crystal compds. for display devices are described which exhibit liq. cryst. phase within a broad temp. range and have high transparent point and low viscosity. Thus, a compn. contg. trans-4-propyl-(4'-cyanophenyl)cyclohexane, trans-4-pentyl-(4'-cyanophenyl)cyclohexane, trans-4-heptyl-(4'-cyanophenyl)cyclohexane, trans-4-pentyl-(4'-cyanodiphenyl)cyclohexane, and 1,4-bis[4-(trans-4-propylcyclohexyl)cyclohexen-1-yl]benzene had a nematic temp. range of -6° to + 75°, a viscosity at 20° of 31 cp, and a dielec. anisotropy of +10.There are some commonly used reagents with their cas registry numbers 87941-85-3 and 13139-86-1 in this article.9. A twisted nematic cell prepd. with the above compn. had a threshold voltage of 1.71 V and a satn. voltage of 2.4 V. .

Action of Grignard reagents on cyanocoumarins

Bedair, A. H.; Aly, F. M.; El-Agrody, A. M.; Selim, M. R. (Fac. Sci., Al-Azhar Univ.Several reagents with their cas registry numbers 107868-22-4 and 13139-86-1 are used here., Cairo, Egypt). J. Serb. Chem. Soc., 51(6), 303-8 (English) 1986. CODEN: JSCSEN. DOCUMENT TYPE: Journal CA Section: 27 (Heterocyclic Compounds (One Hetero Atom)) Treatment of cyanocoumarin I with excess MeMgI gave the 1,4-monoaddn. product II. However, when excess PrMgBr or Me2CHMgBr were used, an addnl. mol. of Grignard reagent underwent 1,2-addn. to the cyano group to give diadduct III (R = Pr, Me2CH). Similar results were found with 3-cyano-5,6-benzocoumarins. .