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658-78-6

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658-78-6 Usage

Uses

Reagent for the preparation of 4-nitrophenyl active esters from acids

Purification Methods

Recrystallise the ester from CHCl3/hexane [Margolis et al. J Biol Chem 253 7891 1978]. It sublimes in vacuo (m 36-38o). It is moisture sensitive. [Sakakibara & Inukai Bull Chem Soc Jpn 37 1231 1964.]

Check Digit Verification of cas no

The CAS Registry Mumber 658-78-6 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,5 and 8 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 658-78:
(5*6)+(4*5)+(3*8)+(2*7)+(1*8)=96
96 % 10 = 6
So 658-78-6 is a valid CAS Registry Number.
InChI:InChI=1/C8H4F3NO4/c9-8(10,11)7(13)16-6-3-1-5(2-4-6)12(14)15/h1-4H

658-78-6 Well-known Company Product Price

  • Brand
  • (Code)Product description
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  • Price
  • Detail
  • TCI America

  • (T0681)  4-Nitrophenyl Trifluoroacetate  >98.0%(GC)

  • 658-78-6

  • 5g

  • 260.00CNY

  • Detail
  • TCI America

  • (T0681)  4-Nitrophenyl Trifluoroacetate  >98.0%(GC)

  • 658-78-6

  • 25g

  • 790.00CNY

  • Detail
  • Aldrich

  • (N22657)  4-Nitrophenyltrifluoroacetate  99%

  • 658-78-6

  • N22657-25G

  • 714.87CNY

  • Detail

658-78-6SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name 4-Nitrophenyl Trifluoroacetate

1.2 Other means of identification

Product number -
Other names (4-nitrophenyl) 2,2,2-trifluoroacetate

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:658-78-6 SDS

658-78-6Relevant articles and documents

Fluorination process

-

Page/Page column 5, (2015/01/18)

It has been found that a compound of formula (I) R-CF2-O-Ar, wherein R is a fluorinated alkyl group or an optionally substituted aromatic or heteroaromatic group and Ar is an optionally substituted aromatic or heteroaromatic group, can be produced by a process comprising a step of reacting a compound of formula (II) R-C(O)-O-Ar wherein R and Ar are as defined above with a fluorination agent at a temperature of below +100°C.

Methods for the synthesis of activated ethylfumarates and their use as intermediates

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Paragraph 0076, (2013/11/06)

Disclosed embodiments relate to improved methods for the synthesis of activated fumarate intermediates and their use in chemical synthesis. Disclosed embodiments describe the synthesis of activated fumarate esters including those derived from activating groups including: 4-nitrophenyl, diphenylphosphoryl azide, pivaloyl chloride, chlorosulfonyl isocyanate, p-nitrophenol, MEF, trifluoroacetyl and chlorine, for example, ethyl fumaroyl chloride and the subsequent use of the activated ester in situ. Further embodiments describe the improved synthesis of substituted aminoalkyl-diketopiperazines from unisolated and unpurified intermediates allowing for improved yields and reactor throughput.

A convenient trifluoroacetylation reagent: N- (trifluoroacetyl)succinimide

Katritzky, Alan R.,Yang, Baozhen,Guofang, Qiu,Zhang, Zhongxing

, p. 55 - 57 (2007/10/03)

N-(Trifluoroacetyl)succinimide, easily prepared from trifluoroacetic anhydride and succinimide forms a novel, convenient trifluoroacetylating reagent. It trifluoroacetylates alcohols, phenols and mines, to generate trifluoroacetate esters, and trifluoroacetamides in excellent yields with very efficient work up procedures.

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