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82239-64-3

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82239-64-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 82239-64-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,2,3 and 9 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 82239-64:
(7*8)+(6*2)+(5*2)+(4*3)+(3*9)+(2*6)+(1*4)=133
133 % 10 = 3
So 82239-64-3 is a valid CAS Registry Number.

82239-64-3SDS

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 pent-4-ynylsulfanylbenzene

1.2 Other means of identification

Product number -
Other names Benzene,(4-pentynylthio)

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:82239-64-3 SDS

82239-64-3Relevant articles and documents

A practical and chemoselective Mo-catalysed sulfoxide reduction protocol using a 3-mercaptopropyl-functionalized silica gel (MPS)

García, Nuria,Fernández-Rodríguez, Manuel A.,García-García, Patricia,Pedrosa, María R.,Arnáiz, Francisco J.,Sanz, Roberto

, p. 27083 - 27086 (2016/03/25)

A convenient sulfoxide deoxygenation procedure using a mercaptopropyl-functionalized silica gel as the reducing agent is described. This new protocol based on a heterogeneous reagent displays broad scope and tolerance to reducible functional groups and, from an experimental point of view, enhances previous methods by simplifying the isolation of the sulfide to a simple filtration.

Pinacol as a new green reducing agent: Molybdenum-catalyzed chemoselective reduction of sulfoxides and nitroaromatics

Garcia, Nuria,Garcia-Garcia, Patricia,Fernandez-Rodriguez, Manuel A.,Rubio, Ruben,Pedrosa, Maria R.,Arnaiz, Francisco J.,Sanz, Roberto

supporting information; experimental part, p. 321 - 327 (2012/04/11)

Pinacol is disclosed as a new chemoselective and environmentally benign reducing agent for sulfoxides and nitroaromatics assisted by readily available dichlorodioxomolybdenum(VI) complexes as catalysts. A wide range of substrates including those bearing challenging functional groups has been efficiently and selectively reduced with acetone and water being the only by-products of these reactions. Copyright

Tin Radical Addition to Alkynyl Sulfides: Reactivity of the Intermediate Thioalkyl-Substituted β-(Tributylstannyl)vinyl Radicals

Capella, Laura,Montevecchi, Pier Carlo,Nanni, Daniele

, p. 3368 - 3374 (2007/10/02)

Phenyl and benzyl alkynyl sulfides 1a-g and 3a, phenylalkynylamines 19a,b, ethers 22a,b, and selenide 31 reacted with tributyltin radicals to give intermediate β-stannylvinyl radicals, whose fate depended on the nature of the side chain. 4-Phenylthio-substituted but-1-en-2-yl radicals underwent stereospecific 5-exo cyclization on the adjacent phenyl ring.The resulting spirocyclohexadienyl radicals gave thiophenes and thiopyrans by carbon-sulfur bond scission or ring expansion on the exocyclic double bond, respectively.Similar behavior was exhibited by the corresponding selenium-containing radical, which afforded a selenophene almost exclusively. (Benzylthio)alkyl-substituted radicals gave products deriving from intramolecular SH2 substitution at the sulfur atom, whereas propargyl sulfides yielded a stannylallene via a β-scission reaction.No 6(or more)-membered ring closure was observed with pentynyl and hexynyl phenyl sulfides 1b,c, which gave only the (E)-addition products of tin hydride; oxygen- and nitrogen-containing vinyl radicals also gave the (E)-adducts exclusively.An interaction between the unpaired electron orbital and the empty low-energy orbitals of the heteroatom might explain why sulfur and selenium can undergo 5-exo cyclization.

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