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1219981-72-2

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1219981-72-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1219981-72-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,9,9,8 and 1 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1219981-72:
(9*1)+(8*2)+(7*1)+(6*9)+(5*9)+(4*8)+(3*1)+(2*7)+(1*2)=182
182 % 10 = 2
So 1219981-72-2 is a valid CAS Registry Number.

1219981-72-2Upstream product

1219981-72-2Downstream Products

1219981-72-2Relevant academic research and scientific papers

A unified total synthesis of aspergillides A and B

Fuwa, Haruhiko,Yamaguchi, Hiroshi,Sasaki, Makoto

supporting information; experimental part, p. 1848 - 1851 (2010/09/16)

An enantioselective total synthesis of aspergillides A and B has been accomplished based on a unified strategy, wherein a hydroxy-directed, highly chemoselective olefin cross-metathesis and a diastereoselective intramolecular oxa-conjugate cyclization were employed to forge the 2,6-substituted tetrahydropyran substructure.

An enantioselective total synthesis of aspergillides A and B

Fuwa, Haruhiko,Yamaguchi, Hiroshi,Sasaki, Makoto

experimental part, p. 7492 - 7503 (2010/12/19)

An enantioselective total synthesis of aspergillides A and B has been accomplished on the basis of a unified synthetic strategy that exploits stereodivergent intramolecular oxa-conjugate cyclization and Yamaguchi macrolactonization.

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