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1122091-19-3

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1122091-19-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1122091-19-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,2,2,0,9 and 1 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1122091-19:
(9*1)+(8*1)+(7*2)+(6*2)+(5*0)+(4*9)+(3*1)+(2*1)+(1*9)=93
93 % 10 = 3
So 1122091-19-3 is a valid CAS Registry Number.

1122091-19-3Relevant academic research and scientific papers

A flexible organocatalytic enantioselective synthesis of heptadeca-1-ene-4,6-diyne-3S,8R,9S,10S-tetrol and its congeners

Kumaraswamy, Gullapalli,Sadaiah, Kadivendi

supporting information; experimental part, p. 262 - 271 (2012/01/14)

A unified enantioselective route is developed for the synthesis of heptadeca-1-ene-4,6-diyne-3S,8R,9S,10S-tetrol and its synthetic congeners. A proline-catalyzed aminoxylation, cross-metathesis, Wittig reaction, and catalytic dihydroxylation are key steps

Deracemization of 1,2-diol monotosylate derivatives by a combination of enzymatic hydrolysis with the Mitsunobu inversion using polymer-bound triphenylphosphine

Shimada, Yasutaka,Usuda, Kazumasa,Okabe, Hirokazu,Suzuki, Tsuguru,Matsumoto, Kazutsugu

experimental part, p. 2802 - 2808 (2010/03/30)

The deracemization of 1,2-diol monotosylate derivatives is achieved by the sequential combination of enzymatic hydrolysis and Mitsunobu inversion using a polymer-bound triphenylphosphine. After the lipase-catalysed hydrolysis of the racemic 2-acetoxyhexyl tosylate, the subsequent Mitsunobu reaction without separation causes an inversion of the resulting (R)-alcohol to give the (S)-enantiomer of the acetate as a single product. In particular, the reaction using the polymer-bound triphenylphosphine also proceeds smoothly, and the product is easily separated by filtration from the polymer-bound reagent and its by-products. This deracemization process is applicable to the preparation of several optically active 1,2-diol monotosylates.

Preparation of optically active 1-O-alkyl-3-O-arylsulfonyl-sn-grycerol derivatives: Substrate engineering in enzyme-mediated enantioselective hydrolysis

Shimada, Yasutaka,Sato, Hiroshi,Mochizuki, Sachiyo,Matsumoto, Kazutsugu

scheme or table, p. 2981 - 2984 (2009/10/17)

Lipase PS catalyzes the enantioselective hydrolysis of various 2-acetyl compounds of the 1-O-alkyl-3-O-arylsulfonyl-sn-glycerol derivatives to afford the corresponding optically active compounds. Changing the structure of the 1-O-alkyl and 3-O-arylsulfonyl groups affects both the reactivity and enantioselectivity. Finally, the E value of the reaction for 2-acetyl-3-O-3,5-dimethylbenzenesulfonyl-1-O-4-methoxybenzyl-sn-glycerol is greater than 200. Georg Thieme Verlag Stuttgart.

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