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7a(R)-methyl (3-phenyl-tetrahydro-pyrrolo[2,1-b]oxazol-5-ylidene)acetate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

686343-41-9

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686343-41-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 686343-41-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,6,3,4 and 3 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 686343-41:
(8*6)+(7*8)+(6*6)+(5*3)+(4*4)+(3*3)+(2*4)+(1*1)=189
189 % 10 = 9
So 686343-41-9 is a valid CAS Registry Number.

686343-41-9Upstream product

686343-41-9Relevant academic research and scientific papers

Novel Routes to Chiral 2-Alkoxy-5-/6-methoxycarbonylmethylidenepyrrolidines/-piperidines

David, Olivier,Calvet, Sandrine,Chau, Francois,Vanucci-Bacque, Corinne,Fargeau-Bellassoued, Marie-Claude,Lhommet, Gerard

, p. 2888 - 2891 (2007/10/03)

We report the results of a study aimed at the diastereoselective synthesis of chiral 2-alkoxy-5-/6-methoxy carbonylmethylidenepyrrolidines/-piperidines by condensation of chiral amines onto ω-oxo alkynoates and ω-oxo β-keto esters.

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