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1283147-52-3

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1283147-52-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1283147-52-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,3,1,4 and 7 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1283147-52:
(9*1)+(8*2)+(7*8)+(6*3)+(5*1)+(4*4)+(3*7)+(2*5)+(1*2)=153
153 % 10 = 3
So 1283147-52-3 is a valid CAS Registry Number.

1283147-52-3Relevant articles and documents

Total synthesis of lithospermic acid using Fe-catalyzed Cross-Dehydrogenative-Coupling reaction and Pd-catalyzed ester-directed C–H olefination

Zheng, Yong,Song, Weibin,Zhu, Yefu,Wei, Bole,Xuan, Lijiang

supporting information, p. 5950 - 5954 (2018/09/06)

The total synthesis of lithospermic acid has been accomplished employing two C–H activation reactions as key steps. Fe-catalyzed Cross-Dehydrogenative-Coupling reaction was used for the rapid construction of benzofuran framework. Pd-catalyzed ester-direct

Enantioselective total synthesis of (+)-lithospermic acid

Ghosh, Arun K.,Cheng, Xu,Zhou, Bing

supporting information, p. 5046 - 5049 (2013/01/15)

An enantioselective synthesis of (+)-lithospermic acid, a potent anti-HIV agent, has been accomplished in a convergent manner in nine steps. The synthesis features an enantioselective intramolecular oxa-Michael addition catalyzed by a quinidine derivative

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