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29778-28-7

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29778-28-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 29778-28-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,9,7,7 and 8 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 29778-28:
(7*2)+(6*9)+(5*7)+(4*7)+(3*8)+(2*2)+(1*8)=167
167 % 10 = 7
So 29778-28-7 is a valid CAS Registry Number.

29778-28-7SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name 1-fluoro-3-(2-phenylethynyl)benzene

1.2 Other means of identification

Product number -
Other names Phenyl-m-fluorphenyl-acetylen

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:29778-28-7 SDS

29778-28-7Relevant articles and documents

A facile protocol for copper-free palladium-catalyzed Sonogashira coupling in aqueous media

Jung, Da-Young,Park, Soo Youl,Kim, Seung-Hoi

supporting information, p. 110 - 116 (2021/11/09)

The combination of a readily available palladium catalyst and an eco-friendly basic aqueous solution of room-temperature ionic liquid, choline hydroxide (ChOH), was used in a facile protocol alternative to the Sonogashira coupling reaction, alkynylation of aryl halides in the absence of a copper cocatalyst and an external base. The dual nature of ChOH to act as a base and a green solvent played a crucial role in the catalytic cycle. The coupling reaction progressed efficiently to form a Csp-Csp2 bond under the identified conditions although the reaction outcome depended significantly on the substrates.

Facile one-pot synthesis of diarylacetylenes from arylaldehydes: Via an addition-double elimination process

Chen, Jianyang,Zhang, Xuan,Wu, Jiajun,Wang, Rui,Lei, Chunlin,An, Yanan

, p. 4701 - 4705 (2021/06/11)

A practical one-pot protocol has been developed to synthesize diarylacetylenes from arylaldehydes by treatment with 1-(arylmethyl)benzotriazoles and LiN(SiMe3)2. The reaction proceeded through imine formation, Mannich-type addition and double elimination to deliver products in up to 99% yields with broad substrate scope. In addition, gram-scale synthesis of 1-bromo-4-(phenylethynyl)benzene has been demonstrated.

Simple and efficient diaryl alkyne synthesis method

-

Paragraph 0026; 0029-0031, (2021/04/14)

The embodiment of the invention discloses a simple and efficient diaryl alkyne synthesis method. The method comprises the steps of by taking arylmethylbenzotriazole and aromatic aldehyde as raw materials, carrying out addition and double-beta-elimination reaction under the action of bis (trimethylsilyl) amino salt MN (SiMe3) 2 to synthesize diaryl alkyne by a one-pot method. The raw materials and chemical reagents used in the method are easy to obtain, the reaction conditions are mild, the operation is simple, the substrate universality is good, the product yield is high, and the method is a simple and efficient diaryl alkyne synthesis method.

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