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109171-58-6

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109171-58-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 109171-58-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,1,7 and 1 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 109171-58:
(8*1)+(7*0)+(6*9)+(5*1)+(4*7)+(3*1)+(2*5)+(1*8)=116
116 % 10 = 6
So 109171-58-6 is a valid CAS Registry Number.

109171-58-6Relevant articles and documents

Cascade Michael-Aldol reaction: Efficient annulation of sulfonamide chalcones into novel cyclohexenones under solvent-free conditions

Agrawal, Nikita R.,Bahekar, Sandeep P.,Agrawal, Abhijeet R.,Sarode, Prashant B.,Chandak, Hemant S.

, p. 227 - 245 (2016/07/06)

A simple, convenient and efficient synthesis of novel sulfonamide cyclohexenones from differently substituted sulfonamide chalcones has been developed. Syntheses of cyclohexenones have been achieved via cascade Michael-Aldol reaction under solvent free condition. This process features mild and solvent-free synthesis of the titled compounds with high yields (18 examples, up to 95% yield). The synthesized scaffold is a promising intermediate for the further transformation into various heterocyclic compounds.

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