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82797-60-2

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82797-60-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 82797-60-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,7,9 and 7 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 82797-60:
(7*8)+(6*2)+(5*7)+(4*9)+(3*7)+(2*6)+(1*0)=172
172 % 10 = 2
So 82797-60-2 is a valid CAS Registry Number.

82797-60-2Relevant articles and documents

Dipole-Stabilized Carbanions from Thioesters. Secondary α'-Lithio Carbamates and Tertiary α'-Lithio Thioesters

Beak, Peter,Becker, Peter D.

, p. 3855 - 3861 (2007/10/02)

The formation of 5 and 17, synthetic equivalents of the α-lithioalkylthio and α-lithiodialkylthio functions, respectively, by deprotonations of the corresponding carbamate 4 and thioester 16 are reported.The reactions of these formally dipole-stabilized carbanions with a variety of electrophiles and their use in synthese of 2,3-substituted thiiranes are demonstrated.The rearrangement of 17 to an α-thiol ketone is shown to be intramolecular by a double labeling experiment.Potentially chiral or conformationally isomeric α'-lithio thioesters are found to be racemized and equilibrated.Formations of secondary α'-lithio thioesters in medium chain, β'-dimethylamino, and allyl systems are reported while β'-alkoxy groups are shown to eliminate to give vinyl thio esters which undergo further metalation.The kinetic acidity of a methyl thioester is shown to be comparable to a propenyl thioester and greater then an ethyl thioester.

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