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114783-98-1

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114783-98-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 114783-98-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,4,7,8 and 3 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 114783-98:
(8*1)+(7*1)+(6*4)+(5*7)+(4*8)+(3*3)+(2*9)+(1*8)=141
141 % 10 = 1
So 114783-98-1 is a valid CAS Registry Number.

114783-98-1Relevant articles and documents

NEW GENERAL SYNTHESIS OF MEDIUM RING-LACTONES VIA A REGIOSELECTIVE β-SCISSION OF ALKOXYL RADICALS GENERATED FROM CATACONDENSED LACTOLS

Suginome, Hiroshi,Yamada, Shinji

, p. 3371 - 3386 (2007/10/02)

We describe a new general method for the synthesis of medium-sized lactones based on ring-enlargement via a regioselective β-scission of alkoxyl radicals generated by photolysis from the hypoiodites of several catacondensed lactols.The syntheses of 9-membered lactones from 6/5 fused lactols, 10-menbered lactones including a naturally occuring lactone, phoracantholide I, from 6/6 or 7/5 fused lactols, and 11-membered lactones from 7/6 or 8/5 fused lactols are shown to be achieved by the present method.This new method may have a potential for application to the synthesis of either smaller or larger-sized lactones.

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