cas 1535-75-7, 2-(Trifluoromethoxy)aniline

Articles about 1535-75-7Total 3 be found

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Co-production preparation method of o-amino trifluoromethoxy benzene and m-amino trifluoromethoxy benzene
The invention discloses a co-production preparation method of o-amino trifluoromethoxybenzene and m-amino trifluoromethoxybenzene, and belongs to the technical field of fine chemical engineering. Thepreparation method comprises the following steps: (1) nitration reaction: carrying out nitration reaction on 4-chlorine-trifluoromethoxybenzene to obtain a mixture of 4-chlorine-2-nitro- trifluoromethoxy benzene and 4-chlorine-3-nitro-trifluoromethoxybenzene; (2) reduction and dechlorination: carrying out reduction and dechlorination on the mixture of the 4-chloro-2-nitro-trifluoromethoxybenzene and the 4-chloro-3-nitro-trifluoromethoxybenzene to obtain o-amino trifluoromethoxybenzene and m-amino trifluoromethoxybenzene; and (3) rectification separation: separating the o-amino trifluoromethoxybenzene from the m-amino trifluoromethoxybenzene through rectification so as to realize co-production. The method is low in cost and high in yield, two useful chemical products are obtained at the same time, the process is simple, and industrial production is easy to achieve.
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Paragraph 0025-0029; 0036-0038; 0040-0042; 0044-0048

(2021/01/11)

Copper(ii)-catalyzed c-n coupling of aryl halides and n-nucleophiles promoted by quebrachitol or diethylene glycol
Herein, we report the natural ligand quebrachitol (QCT) as a promoter for a Cu(II) catalyst, which is highly effective for N-Arylation of various amines and related aryl halides. A series of diarylamine derivatives were obtained in high yields by using diethylene glycol (DEG) as both ligand and solvent. The C-N coupling reactions proceed under mild conditions and exhibit good functional group tolerance.
Chen, Guoliang,Chen, Yuanguang,Du, Fangyu,Fu, Yang,Wu, Ying,Zhou, Qifan
supporting information
p. 2161 - 2168
(2019/11/25)

Method for preparing 2-trifluoro-methoxy-aniline
PCT No. PCT/FR98/01050 Sec. 371 Date Nov. 29, 1999 Sec. 102(e) Date Nov. 29, 1999 PCT Filed May 26, 1998 PCT Pub. No. WO98/54121 PCT Pub. Date Dec. 3, 1998This invention relates to a method for the preparation of a compound of formula I comprising the steps consisting in: a) optionally reacting a compound of general formula II: with a nitration reagent b) reducing the compound obtained in a) c) subjecting the compound obtained in b) to a dehydrochlorination in order to obtain the compound of formula I: and d) isolating the compound obtained in step c) from the reaction mixture.
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(2008/06/13)

Chemical Properties

Appearance/Colour :clear, very faintly yellow liquid
Boiling Point: 170.2 °C at 760 mmHg
Flash Point:56.7 °C
Density: 1.301 g/cm³
Storage Temp.:Keep in dark place,Inert atmosphere,Room temperature
Vapor Pressure: 0.000695mmHg at 25°C
Refractive Index: 1.4614-1.4634
PKA: 2.45±0.10(Predicted)
BRN: 2803814
PSA: 35.25000
LogP: 2.74860

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1535-75-7

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Chemical Properties

Appearance/Colour :clear, very faintly yellow liquid

Boiling Point: 170.2 °C at 760 mmHg

Flash Point:56.7 °C

Density: 1.301 g/cm³

Storage Temp.:Keep in dark place,Inert atmosphere,Room temperature

Vapor Pressure: 0.000695mmHg at 25°C

Refractive Index: 1.4614-1.4634

PKA: 2.45±0.10(Predicted)

BRN: 2803814

PSA: 35.25000

LogP: 2.74860

Global suppliers and manufacturers of 1535-75-7total 131 suppliers on LookChem

Article Database

1535-75-7

Articles about 1535-75-7Total 3 be found

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Chemical Properties

Appearance/Colour :clear, very faintly yellow liquid

Boiling Point: 170.2 °C at 760 mmHg

Flash Point:56.7 °C

Density: 1.301 g/cm3

Storage Temp.:Keep in dark place,Inert atmosphere,Room temperature

Vapor Pressure: 0.000695mmHg at 25°C

Refractive Index: 1.4614-1.4634

PKA: 2.45±0.10(Predicted)

BRN: 2803814

PSA: 35.25000

LogP: 2.74860

Global suppliers and manufacturers of 1535-75-7total 131 suppliers on LookChem

Density: 1.301 g/cm³