Detail of "19812-93-2"

CAS Number:
19812-93-2
Name:
[1,1'-Biphenyl]-4-carbonitrile,4'-hydroxy-
Superlist Name:
4'-Hydroxy-4-biphenylcarbonitrile
Molecular Structure:
Formula:
C₁₃H₉NO
Molecular Weight:
195.22
Synonyms:
4-Biphenylcarbonitrile,4'-hydroxy- (8CI);4-(4-Hydroxyphenyl)benzonitrile;4-Cyano-4'-hydroxybiphenyl;4-Hydroxy-4'-cyanobiphenyl;4'-Cyanobiphenyl-4-ol;4'-Hydroxy-4-biphenylylcarbonitrile;4'-Hydroxy-4-cyano-1,1'-biphenyl;4'-Hydroxy[1,1'-biphenyl]-4-carbonitrile;
Density:
1.24 g/cm³
Melting Point:
192-199 °C
Boiling Point:
379.8 °C at 760 mmHg
Flash Point:
183.5 °C
Appearance:
light yellow to beige crystalline powder
Hazard Symbols:
Xn
Risk Codes:
36/37/38-20/21/22
Safety:
36/37/39-26-22-36/37-9-36 Details
Transport Information:
3439

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Polymers with rigid anisotropic side groups: Polymers with rigid anisotropic side groups. 1. Side chain induced crystallinity in substituted biphenyl acrylates and methacrylates. Alimoglu, A. K.; Ledwith, A.; Gemmell, P. A.; Gray, G. W.; Lacy, D. (Dep. Inorg., Phys. Ind. Chem., Univ. Liverpool, Liverpool L69 3BX, UK). Polymer, 25(9), 1342-6 (English) 1984. CODEN: POLMAG. ISSN: 0032-3861. DOCUMENT TYPE: Journal CA Section: 36 (Physical Properties of Synthetic High Polymers) 4-Hydroxy-4'-cyanobiphenyl [19812-93-2] and 4-hydroxy-4'-n-pentylbiphenyl [61760-85-8] were converted into vinyl monomers by reactions with acryloyl [814-68-6] and methacryloyl chloride [920-46-7]. All four new monomers were homopolymd. free radically to yield acrylic polymers which melt with decompn. at >200°. Powder X-ray diffraction studies clearly show that the polymers are cryst. and suggest that the polymer backbones lie in essentially parallel planes contained within perpendicular smectic-like layers of the directly attached and rigid anisotropic side chain substituents. Side chain ordering is sufficiently strong to overcome the normal conformational barriers assocd. with main chain Me groups in the methacrylate polymers. Previous examples of this type of ordering were restricted to acrylate polymers.

Phenoxypropanol esters with positive dielectric anisotropy: Phenoxypropanol esters with positive dielectric anisotropy. Sugimori, Shigeru; Goto, Yasuyuki; Isoyama, Toshio; Nigorikawa, Kazunori; Furukawa, Yoshito; Ogawa, Tetsuya; Kitano, Yoshimasa; Yoshida, Naoyuki (Chisso Corp., Japan). Jpn. Kokai Tokkyo Koho JP 61151150 A2 9 Jul 1986 Showa, 4 pp. (Japan) CODEN: JKXXAF.Chemical with cas number 19812-93-2 also plays role. CLASS: ICM: C07C069-003. ICS: C07C121-60; C07C121-75; C09K019-20; C09K019-30; C09K019-46. ICA: C07C069-74; C07C069-76; G02F001-13; G09F009-35. APPLICATION: JP 84-272197 24 Dec 1984. DOCUMENT TYPE: Patent CA Section: 75 (Crystallography and Liquid Crystals) Section cross-reference(s): 25, 74 Phenoxypropanol esters of the formula RZCO2CH2CH2CH2OZ1R1 (I: one of R and R1 is C1-15 alkyl or alkoxy, the other is Cl, F or CN; Z = C6H4, C6H10, C6H10C6H10, C6H4C6H10, C6H10C6H4, C6H4C6H4; Z1 = C6H4, C6H4C6H10, C6H4C6H4, where C6H4 and C6H10 denotes p-phenylene and trans-1,4-cyclohexanediyl, resp.) and liq. crystal compns. contg. I are claimed. The liq. crystal compds. shows good chem. and phys. stability, and the liq. crystal compns. are useful in display devices. Thus, reaction of 4'-cyano-4-hydroxybiphenyl with 3-bromo-1-propanol and esterification of the product with trans-4-propylcyclohexanecarboxylic chloride gave I (R = Pr; R1 = CN; Z = C6H10; Z1 = C6H4C6H4) which was useful in liq. crystal compns. for display devices. .