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2138-48-9

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Commercial manufacturing of propofol: Simplifying the isolation process and control on related substances
A commercially viable manufacturing process for propofol (1) is described. The process avoids acid-base neutralization events during isolation of intermediate, 2,6-di-isopropylbenzoic acid (3) and crude propofol, and thus simplifies the synthesis on industrial scale to a considerable extent. Syntheses of five impurities/related substances (USP and EP) are also described.
Pramanik, Chinmoy,Kotharkar, Sandeep,Patil, Pradip,Gotrane, Dinkar,More, Yogesh,Borhade, Ajit,Chaugule, Balaji,Khaladkar, Tushar,Neelakandan,Chaudhari, Ashok,Kulkarni, Mukund G.,Tripathy, Narendra K.,Gurjar, Mukund K.
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p. 152 - 156
(2014/05/20)

ALKYLATION OF HYDROXYARENES WITH OLEFINS, ALCOHOLS AND ETHERS IN IONIC LIQUIDS
Hydroxyarenes are alkylated using an ionic liquid catalyst system with olefins, alcohols, or ethers as alkylating agents. The ionic liquid catalyst system comprises chloroindate (III) anions. The reactions may be conducted at moderate temperatures and pressures to yield commercially relevant alkylated hydroxyarene compounds.
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Page/Page column 23

(2008/06/13)

A three-step preparation of 3-isopropylcatechol
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Majetich,Liu
p. 2331 - 2335
(2007/10/02)

Synthesis of some aromatic aldehydes and phenols as potential male antifertility agents
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Singh,Shukla,Dwivedi,Khanna
p. 692 - 694
(2007/10/02)

Hair dyeing composition containing an aryldiamine and a substituted catechol
A composition for use in the dyeing of keratinous fibre such as hair includes an aqueous anaerobic solution of an aryldiamine and a substituted catechol. Optionally, an aromatic coupling agent can also be incorporated in the composition to modify the shade of color produced. Anaerobic storage conditions can, for example, be maintained by packing the composition in an aerosol container with a halocarbon propellant.
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(2008/06/13)

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Chemical Properties

Boiling Point: 265.3°Cat760mmHg
Flash Point:125.7°C
Density: 1.116g/cm³
Solubility:DMSO (Slightly), Ethyl Acetate (Slightly), Methanol (Slightly)
Storage Temp.:Sealed in dry,Room Temperature
Vapor Pressure: 0.00562mmHg at 25°C
Refractive Index: 1.4464 (estimate)
PKA: 9.86±0.10(Predicted)
PSA: 40.46000
LogP: 2.22120

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