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1237743-72-4

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1237743-72-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1237743-72-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,7,7,4 and 3 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1237743-72:
(9*1)+(8*2)+(7*3)+(6*7)+(5*7)+(4*4)+(3*3)+(2*7)+(1*2)=164
164 % 10 = 4
So 1237743-72-4 is a valid CAS Registry Number.

1237743-72-4Downstream Products

1237743-72-4Relevant articles and documents

Cu(OTf)2-catalyzed arylmethylation of terminal alkynes with benzylic alcohols under ligand-, base-, and additive-free reaction conditions

Ren, Kai,Li, Pinhua,Wang, Lei,Zhang, Xiuli

supporting information; experimental part, p. 2753 - 2759 (2011/04/27)

An effective, convenient, and mild coupling reaction of benzylic alcohols with terminal alkynes has been developed. As an effective Lewis acid, Cu(OTf)2-catalyzed arylmethylation of terminal alkynes with benzylic alcohols generated the correspo

Copper-catalyzed cross-dehydrogenative coupling (CDC) of Alkynes and Benzylic C-H bonds

Correia, Camille A.,Li, Chao-Jun

supporting information; experimental part, p. 1446 - 1450 (2010/08/20)

The activation of benzylic C-H bonds and subsequent coupling with terminal alkynes in the presence of 2,3-dichloro-5,6-dicyanoquinone (DDQ) and a catalytic amount of copper(I) triflate is presented. Good to moderate yields of disubstituted alkynes are obtained for this cross-dehydrogenative coupling (CDC) reaction between a variety of aromatic alkynes and diphenylmethane derivatives.

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