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2,5-anhydro-3-O-p-toluenesulfonyl-L-idose ethylene acetal is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

208394-49-4

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208394-49-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 208394-49-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,8,3,9 and 4 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 208394-49:
(8*2)+(7*0)+(6*8)+(5*3)+(4*9)+(3*4)+(2*4)+(1*9)=144
144 % 10 = 4
So 208394-49-4 is a valid CAS Registry Number.

208394-49-4Upstream product

208394-49-4Relevant academic research and scientific papers

A divergent synthesis of (+)-muscarine and (+)-epi-muscarine from D-glucose

Popsavin, Velimir,Beri, Ostoja,Popsavin, Mirjana,Radi, Ljubica,Csanádi, János,Cirin-Novta, Vera

, p. 5929 - 5940 (2000)

A novel stereospecific synthesis of (+)-muscarine and (+)-epi-muscarine has been achieved by utilizing D-glucose as a chiral precursor. The key steps of the synthesis involved stereospecific cyclization of 3,5-di-O-sulfonyl-D-glucofuranose derivatives into the corresponding 2,5-anhydrides, and stereospecific hydrogenation of 2,5-anhydro-L-threo-hex-2-enose ethylene acetal derivatives, thus providing an access to divergent intermediates for the preparation of both target molecules in a fully stereospecific manner. (C) 2000 Elsevier Science Ltd.

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