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81076-16-6

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81076-16-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81076-16-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,0,7 and 6 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 81076-16:
(7*8)+(6*1)+(5*0)+(4*7)+(3*6)+(2*1)+(1*6)=116
116 % 10 = 6
So 81076-16-6 is a valid CAS Registry Number.

81076-16-6Relevant articles and documents

STEREOCONTROLLED TOTAL SYNTHESIS OF THE MACROCYCLIC LACTONE (-)-ASPICILIN

Waanders, P.P.,Thijs, L.,Zwanenburg, B.

, p. 2409 - 2412 (2007/10/02)

The essential features of the enantiocontrolled total synthesis of (-)-aspicilin are the strategic use of the photochemical rearrangement of α,β-epoxy diazomethyl ketones to 4-hydroxyalkenoates (Scheme 1) and the stereochemical control of the Sharpless epoxidation, α,ο functionalization of an alkynol using potassium 3-aminopropylamine (KAPA) as acetylene zipper, coupling between C7 and C8 by means of a Wittig reaction and lactonization by using 2,6-dichlorobenzoyl chloride.

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