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1138741-54-4

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1138741-54-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1138741-54-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,3,8,7,4 and 1 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1138741-54:
(9*1)+(8*1)+(7*3)+(6*8)+(5*7)+(4*4)+(3*1)+(2*5)+(1*4)=154
154 % 10 = 4
So 1138741-54-4 is a valid CAS Registry Number.

1138741-54-4Relevant articles and documents

An indium(III)-catalyzed synthesis of 4,4-dichloro-1-aryl-N-alkyl-1-yn-3- amines via an intermolecular C(sp2)-C(sp) bond formation

Malakar, Chandi C.,Maes, Bert U. W.,Tehrani, Kourosch Abbaspour

supporting information, p. 3461 - 3467 (2013/02/22)

This paper demonstrates an indium(III) triflate-catalyzed reaction of electron-deficient α,α-dichloroaldimines with terminal alkynes leading to a rapid and selective access to highly functionalized propargylic amines in good to excellent yields. The dichloromethylene moiety of the aldimine acts as an activating group to accomplish this transformation under very mild conditions.

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