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536737-62-9

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536737-62-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 536737-62-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,3,6,7,3 and 7 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 536737-62:
(8*5)+(7*3)+(6*6)+(5*7)+(4*3)+(3*7)+(2*6)+(1*2)=179
179 % 10 = 9
So 536737-62-9 is a valid CAS Registry Number.

536737-62-9Upstream product

536737-62-9Downstream Products

536737-62-9Relevant articles and documents

Total synthesis of (+)-asteltoxin

Eom, Khee Dong,Raman, J. Venkat,Kim, Heejin,Cha, Jin Kun

, p. 5415 - 5421 (2007/10/03)

A convergent synthesis of (+)-asteltoxin (1) has been achieved by the Horner-Emmons olefination of bis(tetrahydrofuran) aldehyde 53 and α-pyrone phosphonate 5. A key step features the stereoselective construction of a sterically congested quaternary center embedded in the densely functionalized bis(tetrahydrofuran) subunit by a Lewis acid-catalyzed, pinacol-type rearrangement of an epoxy silyl ether. This pivotal rearrangement methodology parallels the proposed biosynthetic pathway of 1 and is ripe for applications to the stereocontrolled synthesis of structurally complex natural products.

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