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5-Allyl-1-(4-tolylsulfonyl)pyrrolidin-2-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

264255-80-3

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264255-80-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 264255-80-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,4,2,5 and 5 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 264255-80:
(8*2)+(7*6)+(6*4)+(5*2)+(4*5)+(3*5)+(2*8)+(1*0)=143
143 % 10 = 3
So 264255-80-3 is a valid CAS Registry Number.

264255-80-3Relevant articles and documents

Formation of medium-size bridged ring systems via ring-closing metathesis of 2,5-disubstituted-2,3-dihydro-1H-pyrroles

Bamford, Samantha J.,Goubitz, Kees,Van Lingen, Hester L.,Luker, Tim,Schenk, Henk,Hiemstra, Henk

, p. 345 - 351 (2000)

A series of 2,5-disubstituted-2,3-dihydro-1H-pyrroles were prepared via diastereoselective alkylations of sulfone 10. Ring-closing metathesis (RCM), using Grubbs catalyst, provided bridged ring systems with newly formed 9-to 12-membered rings in moderate to good yields. The 9-membered ring was formed as a single Z-isomer whereas the 10- to 12-membered rings were formed as mixtures of E- and Z-isomers. It was shown that the minor diastereomer obtained from the alkylation product 11c failed to undergo RCM, illustrating the crucial aspect of substrate conformation.

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