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106399-62-6

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106399-62-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 106399-62-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,6,3,9 and 9 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 106399-62:
(8*1)+(7*0)+(6*6)+(5*3)+(4*9)+(3*9)+(2*6)+(1*2)=136
136 % 10 = 6
So 106399-62-6 is a valid CAS Registry Number.

106399-62-6Relevant articles and documents

ACYCLIC STEREOCHEMICAL CONTROL USING HEXACARBONYLDICOBALT STABILIZED PROPARGYL CATIONS. A HIGHLY STEREOSELECTIVE ROUTE TO 1β-METHYLCARBAPENEM PRECURSORS.

Prasad, J. Siva,Liebeskind, Lanny S.

, p. 1857 - 1860 (2007/10/02)

A highly stereoselective route to precursors of 1β-methylcarbapenems is described.Hydride reduction of a hexacarbonyldicobalt stabilized propargyl cation derived from a 4-acyl-2-azetidinone prepared using the Weinreb ketone synthesis proceeds with complete stereochemical control to a 1β-methylcarbapenem precursor bearing an alkynyl unit.The alkyne is readily elaborated to (3S,4R)-3--4--2-azetidin-2-one or hydrogenated and oxidatively cleaved to (3S,4S)-3--4--azetidin-2-one.

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