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33598-23-1

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33598-23-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 33598-23-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,5,9 and 8 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 33598-23:
(7*3)+(6*3)+(5*5)+(4*9)+(3*8)+(2*2)+(1*3)=131
131 % 10 = 1
So 33598-23-1 is a valid CAS Registry Number.

33598-23-1SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name 1,4-diphenyl-2-butyne

1.2 Other means of identification

Product number -
Other names 1,4-diphenylbut-2-yne

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:33598-23-1 SDS

33598-23-1Relevant articles and documents

Palladium-Catalyzed Coupling of Terminal Alkynes with Benzyl Ammonium Salts

Xu, Silin,Zhang, Zhenming,Han, Chunyu,Hu, Wenkai,Xiao, Tiwen,Yuan, Yanan,Zhao, Junfeng

, p. 12192 - 12197 (2019/10/11)

A highly efficient palladium-catalyzed Sonogashira coupling of benzylic ammonium salts with terminal alkynes is developed. This strategy provides a facile access to a series of internal alkyne derivatives in moderate to excellent yields via C-N bond cleavage and C(sp3)-C(sp) bond formation. The broad substrate scope and high functional group tolerance make this reaction attractive for organic synthesis.

N,N,N′,N′-tetramethylmethanediamine - A new reagent for aminomethylation of acetylenes

Shaibakova,Titova,Ibragimov,Dzhemilev

experimental part, p. 1126 - 1129 (2009/09/25)

A new procedure has been developed for aminomethylation of terminal acetylenes with N,N,N′,N′-tetramethylmethanediamine in the presence of transition metals and lanthanide complexes and salts. The procedure ensures formation of the corresponding N,N-dimethylprop-2-yn-1-amines with high yield and selectivity.

Photosensitized Oxidation of Furans. Part 12. Solvent Effects in Thermal Rearrangement of the 2,5-Peroxides of 2,5-Unsubstituted Furans

Graziano, M. Liliana,Lesce, M. Rosaria,Cinotti, Angela,Scarpati, Rachele

, p. 1833 - 1840 (2007/10/02)

The formation, thermal stability, and modes of thermal rearrangement of the 2,5-peroxides (1a-i) of 2,5-unsubstituted furans are reported.In apolar solvents the main product of thermal rearrangement is the cis diepoxide (3) accompanied by the epoxyfuranones (6) and (7).These rearrangements are thought to proceed via concerted processes, although no distinction can be made between them and rearrangements via diradicals.In basic solvents the 5-hydroxyfuran-2(5H)-ones (4) and (5) are isolated in high yields.In this case the rearrangements are explained by assuming ion pairs, (18), as intermediates.

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