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18268-10-5

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18268-10-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 18268-10-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,2,6 and 8 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 18268-10:
(7*1)+(6*8)+(5*2)+(4*6)+(3*8)+(2*1)+(1*0)=115
115 % 10 = 5
So 18268-10-5 is a valid CAS Registry Number.

18268-10-5Relevant articles and documents

Graphene oxide (GO)-catalyzed chemoselective thioacetalization of aldehydes under solvent-free conditions

Roy, Babli,Sengupta, Debasish,Basu, Basudeb

, p. 6596 - 6600 (2014)

An efficient method for the synthesis of open chain, cyclic, and unsymmetrical dithioacetals from aryl/hetero-aryl/aliphatic aldehydes is described. The reaction is performed using graphene oxide (GO) as the catalyst under solvent-free and aerobic conditions. High chemoselectivity is observed in the reaction as aryl/alkyl ketones do not give thioketals under the condition.

Alkylidenation of esters on solid support and traceless synthesis of 2- substituted benzofurans

Guthrie, Emma J.,MacRitchie, Jackie,Hartley, Richard C.

, p. 4987 - 4990 (2007/10/03)

Polymer-supported esters are smoothly converted into enol ethers using a titanocene alkylidene prepared by treatment of 2-tert- butyldimethylsilyloxybenzaldehyde diphenyldithioacetal with the low valent titanium species Cp2Ti[P(OEt)3]2. Treatment of the enol ethers with acid leads to the release of ketones from the Wang resin in high yield. Traceless solid-phase synthesis of 2-substituted benzofurans is achieved in a three- step termination procedure. (C) 2000 Published by Elsevier Science Ltd.

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