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(1S,3S,4R)-2-Aza-bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid 2-benzyl ester 3-ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

81357-22-4

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81357-22-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81357-22-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,3,5 and 7 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 81357-22:
(7*8)+(6*1)+(5*3)+(4*5)+(3*7)+(2*2)+(1*2)=124
124 % 10 = 4
So 81357-22-4 is a valid CAS Registry Number.

81357-22-4Relevant academic research and scientific papers

Syntheses and antiulcer activities of 2-aminonorbornene derivatives

Yamazaki,Horikawa,Nishitani,Iwasaki,Nosaka,Tamaki

, p. 102 - 108 (2007/10/02)

2,2,-Disubstituted nothornenes (1, 2), 2,2-Disubstituted nothornane (3), 2,2,3-trisubstituted norbornenes (4, 5), oxanothornenes (6) and azanorbornenes (7) were synthesized by the Diels-Alder reaction using α,β-dehydroamino acids as a key step, and their

PREPARATION OF DI- AND TRIACYLIMINES AND THEIR USE IN THE SYNTHESIS OF NITROGEN HETEROCYCLES

Jung, Michael E.,Shishido, Kozo,Light, Lynn,Davis, Leonard

, p. 4607 - 4610 (2007/10/02)

Reaction of aza-Wittig reagents with glyoxylates and keto malonates produces di- and triacylimines which are moderately reactive dienophiles for Diels-Alder cycloaddition.

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