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319483-27-7

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319483-27-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 319483-27-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,1,9,4,8 and 3 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 319483-27:
(8*3)+(7*1)+(6*9)+(5*4)+(4*8)+(3*3)+(2*2)+(1*7)=157
157 % 10 = 7
So 319483-27-7 is a valid CAS Registry Number.

319483-27-7Downstream Products

319483-27-7Relevant articles and documents

Amino-Claisen rearrangements and Diels-Alder reactions of ketene N,O-acetals: Reactivity studies. On the way to a novel tandem process?

Neuschuetz, Klaus,Simone, Jean-Mary,Thyrann, Thomas,Neier, Reinhard

, p. 2712 - 2737 (2007/10/03)

We report the synthesis of N-benzyl-N-[(E)-buta-1,3-dienyl]propanamide (6) and its corresponding O-silyl-substituted ketene N,O-acetal 7 and their Diels-Alder reaction. Propanamide 6 reacted smoothly, whereas the yield obtained from 7 was low, probably due to polymerization of the dienophile induced by electron transfer. The ketene N,O-acetals 27a-g were synthesized starting from the corresponding benzamides 25a-e (Scheme g). The ketene N,O-acetals 27a-g showed increased stabilities and underwent amino-Claisen rearrangements under thermal conditions. Using catalysts, interesting side reactions leading either to the annulated systems rac-35-37 or to a β-lactam rac-34 were observed.

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