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(2R,3S,4R)-3,5-bis(benzoyloxy)-2-ethyl-4-hydroxy-pentanoic acid 1,4-lactone is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

111998-60-8

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111998-60-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 111998-60-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,9,9 and 8 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 111998-60:
(8*1)+(7*1)+(6*1)+(5*9)+(4*9)+(3*8)+(2*6)+(1*0)=138
138 % 10 = 8
So 111998-60-8 is a valid CAS Registry Number.

111998-60-8Relevant academic research and scientific papers

Chemistry of O-Silylated Ketene Acetals: Stereocontrolled Synthesis of 2-Deoxy- and 2-Deoxy-2-C-alkyl-erythro-pentoses

Kita, Yasuyuki,Tamura, Osamu,Itoh, Fumio,Yasuda, Hitoshi,Kishino, Hiroko,et al.

, p. 554 - 561 (1988)

Diastereoselective aldol reactions of 2,3-O-isopropylidene-D-(and L-)-glyceraldehydes (D- and L-2) with ketene silyl acetal 1a occurred in acetonitrile under mild conditions to give the corresponding anti-β-siloxy esters (D- and L-3a) as major products, which were converted to 2-deoxy-D-(and L-) riboses through a few additional steps.The aldol reactions of D-2 with α-monoalkyl-substituted ketene silyl acetals 1c-f proceeded similarly to give all anti-α-alkyl-β-siloxy esters (11a-14a) as major products, which were converted into 2-deoxy-2-C-alkyl-erythro-pentoses (17a,b).

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