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Carbonic acid cyclohexylmethyl ester (3R,4S,5R,6R)-3,4,5-tris-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

205518-20-3

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205518-20-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 205518-20-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,5,5,1 and 8 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 205518-20:
(8*2)+(7*0)+(6*5)+(5*5)+(4*1)+(3*8)+(2*2)+(1*0)=103
103 % 10 = 3
So 205518-20-3 is a valid CAS Registry Number.

205518-20-3Relevant academic research and scientific papers

An α-selective glycosylation via decarboxylation of mixed carbonate catalyzed by the combination of lewis acid and silver perchlorate

Iimori, Takamasa,Azumaya, Isao,Shibazaki, Takafumi,Ikegami, Shiro

, p. 221 - 224 (2007/10/03)

A catalytic amount of SnCl4-AgClO4 or Cp2HfCl2-2AgClO4 promoted decarboxylation of the 1-O-carbonates of the sugars to afford the α-glycosides stereoselectively. In this glycosylation reaction, the carbonate acts a leaving group of the glycosyl donor and also a cap of hydroxyl group in the acceptor alcohol.

A novel intramolecular decarboxylative glycosylation via mixed carbonate

Iimori, Takamasa,Shibazaki, Takafumi,Ikegami, Shiro

, p. 2267 - 2270 (2007/10/03)

A two-step glycosylation procedure, which involves (1) linking two sugars by using carbonate as a connector, (2) removing carbon dioxide to form a glycosidic bond by the aid of Lewis acid, has been developed. This glycosylation procedure was based on the opposite mode of connection, where a glycosyl acceptor was activated to link sugars.

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