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Methanesulfonic acid, trifluoro-, 4-phenyl-3-butynyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

87639-40-5

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87639-40-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 87639-40-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,6,3 and 9 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 87639-40:
(7*8)+(6*7)+(5*6)+(4*3)+(3*9)+(2*4)+(1*0)=175
175 % 10 = 5
So 87639-40-5 is a valid CAS Registry Number.

87639-40-5SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name 4-phenylbut-3-ynyl trifluoromethanesulfonate

1.2 Other means of identification

Product number -
Other names 4-phenyl-but-3-ynyl triflate

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:87639-40-5 SDS

87639-40-5Relevant articles and documents

Regioselective Formation of Substituted Indoles: Formal Synthesis of Lysergic Acid

Beaudry, Christopher M.,Points, Gary L.,Stout, Kenneth T.

supporting information, p. 16655 - 16658 (2020/12/01)

A Diels–Alder reaction-based strategy for the synthesis of indoles and related heterocycles is reported. An intramolecular cycloaddition of alkyne-tethered 3-aminopyrones gives 4-substituted indolines in good yield and with complete regioselectivity. Additional substitution is readily tolerated in the transformation, allowing synthesis of complex and non-canonical substitution patterns. Oxidative conditions give the corresponding indoles. The strategy also allows the synthesis of carbazoles. The method was showcased in a formal synthesis of lysergic acid.

Copper-Catalyzed Si-B Bond Activation in the Nucleophilic Substitution of Primary Aliphatic Triflates

Scharfbier, Jonas,Oestreich, Martin

supporting information, p. 1274 - 1276 (2016/05/10)

A method for the nucleophilic displacement of the triflate leaving group attached to terminally functionalized alkyl groups with nucleophilic silicon is reported. Copper catalysis is used to release the silicon nucleophile from Suginome's Si-B reagent. Th

The combination of relay and cooperative catalysis with a gold/palladium/brnsted acid ternary system for the cascade hydroamination/ allylic alkylation reaction

Wu, Hua,He, Yu-Ping,Gong, Liu-Zhu

supporting information; experimental part, p. 975 - 980 (2012/05/20)

The combination of relay and cooperative catalysis with a gold/palladium/Brnsted acid ternary system renders a cascade hydroamination/allylic alkylation reaction to provide an unprecedented entry to pyrrolidine derivatives in high yields. Copyright

Nitrogen heteroaromatic cations by [2+2+2] cycloaddition

Cikova, Martina,Kolivoska, Viliam,Cisarova, Ivana,Saman, David,Pospisil, Lubomir,Teply, Filip

supporting information; experimental part, p. 450 - 462 (2011/02/28)

A modular approach to the construction of monocationic quaternary N-heteroaromatic frameworks was developed capitalizing on a direct pyridine-type nitrogen quaternization followed by metal-catalyzed [2+2+2] cycloaddition with gaseous acetylene. The flexib

Highly modular assembly of cationic helical scaffolds: rapid synthesis of diverse helquats via differential quaternization

Severa, Luká?,Adriaenssens, Louis,Vávra, Jan,?aman, David,Císa?ová, Ivana,Fiedler, Pavel,Teply, Filip

experimental part, p. 3537 - 3552 (2010/06/17)

A protocol for rapid and highly modular assembly of a diverse set of helquats is described. From a common bis-isoquinoline precursor, two successive distinct pyridine-type nitrogen quaternizations followed by rhodium-catalyzed [2+2+2] cycloaddition afford non-symmetric [7]helquats. This route allows for straightforward molecular editing of cationic helical skeletons as exemplified by the synthesis of 15 different [5]-, [6]-, and [7]helquats.

Enyne ring-closing metathesis on heteroaromatic cations

Nunez, Ana,Cuadro, Ana M.,Alvarez-Builla, Julio,Vaquero, Juan J.

, p. 2690 - 2692 (2008/09/21)

Cationic heteroaromatic enynes have been employed as substrates in enyne ring-closing metathesis, under an atmosphere of ethylene and using the Hoveyda-Grubbs catalyst, for the first time; the reaction affords new 1-vinyl- and 2-vinyl-substituted 3,4-dihy

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