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79491-36-4

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79491-36-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 79491-36-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,4,9 and 1 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 79491-36:
(7*7)+(6*9)+(5*4)+(4*9)+(3*1)+(2*3)+(1*6)=174
174 % 10 = 4
So 79491-36-4 is a valid CAS Registry Number.

79491-36-4Downstream Products

79491-36-4Relevant articles and documents

Domino Synthesis of 4-Alkylidene-3,4-dihydro-2H-pyrroles from Homopropargyl Sulfonamides and Aldehydes

Amemiya, Sho,Takahashi, Yui,Tsubouchi, Akira,Saito, Akio

, p. 5717 - 5724 (2021/10/30)

Abstract: We describe a domino synthesis of 4-alkylidene-3,4-dihydro-2H-pyrroles from aryl-substituted homopropargyl sulfonamides and aldehydes promoted by cheap and easy-to-handle TsOH ? H2O. The present reactions proceed through cyclocondensation of α-sulfonamidoethyl-α,β-enone intermediates, which are formed by ring-cleavage of 3-acylpyrrolidines corresponding to aza-Prins cyclized intermediates. By controlling the conditions, 3-acylpyrrolidines can be obtained.

Bischler-Napieralski Reaction of N-(4-Aryl-4-hydroxybutyl)benzamides: Synthesis and X Ray Structure of (E)-3-Arylmethylidene-4,5-dihydro-3H-pyrroles

Browne, Elaine J.,Skelton, Brian W.,White, Allan H.

, p. 897 - 904 (2007/10/02)

The N-(4-aryl-4-hydroxybutyl)benzamides (3a,b) have been cyclized under Bischler-Napieralski conditions to the 3-arylmethylidene-4,5-dihydro-3H-pyrroles (4a,b).These products are consistent with the formation of N-(4-arylbut-3-enyl)benzamide intermediates

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