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121477-81-4

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121477-81-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121477-81-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,4,7 and 7 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 121477-81:
(8*1)+(7*2)+(6*1)+(5*4)+(4*7)+(3*7)+(2*8)+(1*1)=114
114 % 10 = 4
So 121477-81-4 is a valid CAS Registry Number.

121477-81-4Downstream Products

121477-81-4Relevant articles and documents

Synthesis of diarylalkynes via tandem Sonogashira/decarboxylative reaction of aryl chlorides with propiolic acid

Li, Xiang,Yang, Fan,Wu, Yangjie

, p. 13738 - 13741 (2014)

A facile and efficient protocol for one-pot synthesis of diarylalkynes via tandem Sonogashira/decarboxylative coupling has been developed. The remarkable features of this reaction include using commercially available aryl chlorides as starting materials and taking the propiolic acid instead of expensive terminal alkynes as an acetylene source. This journal is the Partner Organisations 2014.

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