Detail of "35946-91-9"

CAS Number:
35946-91-9
Name:
Phenol,2,5-bis(1-methylethyl)-
Molecular Structure:
Formula:
C₁₂H₁₈O
Molecular Weight:
178.27
Synonyms:
Phenol,2,5-diisopropyl- (6CI,7CI);2,5-Diisopropylphenol;2,5-Di(propan-2-yl)phenol;p-Diisopropylbenzene monoalc;2,5-Bis(1-methylethyl)phenol;
EINECS:
252-807-4
Density:
0.948 g/cm³
Boiling Point:
263 °C at 760 mmHg
Flash Point:
119.9 °C

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Phenolic disinfectants: Phenolic disinfectants. Hyde, Thomas Gerald; Lamb, Frank (Ciba-Geigy A.-G. , Switz.). Ger. Offen. DE 3414928 A1 25 Oct 1984, 12 pp. (German). (Germany). CODEN: GWXXBX. CLASS: IC: A01N031-08; A01N057-00; A01N025-02; A01N025-00; C11D003-48; C11D009-50. APPLICATION: DE 84-3414928 19 Apr 1984. PRIORITY: GB 83-11081 23 Apr 1983. DOCUMENT TYPE: Patent CA Section: 63 (Pharmaceuticals) Section cross-reference(s): 5, 25 Disinfectants contain: phenol [108-95-2] 0.5, 32 diisopropylphenols (<20% 2.5-diisopropylphenol) 20-100, and mono-, tri-, or higher isopropylphenols 0-80% by wt. the disinfectant may be black or white emulsions or clear solns., and may contain pine tar oil. Thus, 752 parts phenol and 15 parts fullers' earth, under N, were heated to 140° and propylene [115-07-1] gas was added at 4 L/min for 4.25 h. The mixt. was cooled under N and the catalyst was filtered to give a liq. contg.: phenol 3.03, 2-isopropylphenol [88-69-7] 17.3, 3-isopropylphenol [618-45-1] 0.63, 4-isopropylphenol [99-89-8] 3.52, 2,6-diisopropylphenol [2078-54-8] 17.8, 2,4-diisopropylphenol [2934-05-6] 16.2, 2,5-diisopropylphenol [35946-91-9] 4.18, 3,5-diisopropylphenol [26886-05-5] 0.55, 2,4,6-triisopropylpenol [2934-07-8] 30.9, and 2,4,5-triisopropylphenol [55154-67-1] 5.54%. A disinfectant contained the isopropylphenol mixt. 2, pine tar oil 4, 30% sapond. castor oil 20, and H2O 74%.

Physicochemical investigation of phenols: Physicochemical investigation of phenols. XIII. Reactivity of the phenol ring. Alkylation and isomerization reactions under thermodynamic control. Bertholon, Guy; Perrin, R. (Groupe Rech. Phenols, Univ. Claude-Bernard, Villeurbanne, Fr.). Bull. Soc. Chim. Fr.Several reagents with their cas registry numbers 35946-91-9 and 26886-05-5 are used here., (7-8, Pt. 1), 1537-44 (French) 1975. CODEN: BSCFAS. DOCUMENT TYPE: Journal CA Section: 22 (Physical Organic Chemistry) The equil. isopropylation of phenol with either Me2CHOH or Me2CHCl and AlCl3 at room temp. gave m-Me2CHC6H4OH and 3,5-(Me2CH)2C6H3OH as the major products in agreement with the calcd. thermodn. stabilities. The active alkylating agent was Me2CHCl even when Me2CHOH was used. PhOAlCl2 and not PhOH was alkylated. HCl was necessary for the reactions in the AlCl3-Me2CHCl system. Kinetic control of the alkylation favored ortho-para substitution. Transalkylation and isomerization of o-Me2CHC6H4OH in H3PO4 at >150.degree. indicated that m-Me2CHC6H4OH was most thermodn. stable in agreement with the calcns. and the observations in the AlCl3 system. The thermodn. properties of isopropylphenols were detd. .