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33934-11-1

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33934-11-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 33934-11-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,9,3 and 4 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 33934-11:
(7*3)+(6*3)+(5*9)+(4*3)+(3*4)+(2*1)+(1*1)=111
111 % 10 = 1
So 33934-11-1 is a valid CAS Registry Number.

33934-11-1Downstream Products

33934-11-1Relevant articles and documents

Reaction of 2-alkylidene-3,1-benzoxathiin-4-ones with nitrones

Shimizu, Masao,Yamanaka, Masaki,Kurita, Koujiro,Tanaka, Shinji,Ando, Wataru,Sakai, Norio

, p. 249 - 251 (2017)

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Asymmetric Syntheses of the Naturally Ocurring β-Amino Acids, β-Lysine, β-Leucine and β-Phenyl-β-alanine via Nitrone Cycloaddition

Keirs, David,Moffat, David,Overton, Karl,Tomanek, Richard

, p. 1041 - 1051 (2007/10/02)

A general asymmetric synthesis of β-amino acids is based on the dipolar cycloaddition of nitrones 7 (R* chiral) with vinyl acetate 8a, ketene acetals 8b or α-chloroacrylonitrile 8c.The cycloadducts 9 are converted either directly (9b) or via the isoxazolidones 10 (9a, 9c) into the free β-amino acids 11.Diastereoselectivity at C-3 in the adducts 9 ranges between 2:1 and 11:1.The natural β-amino acids, β-lysine, β-leucine and β-phenyl-β-alanine, have been prepared in this way.

Method for the production of N-alkyl beta-hydroxylamine hydrocinnamonyl hydroxamic acids

-

, (2008/06/13)

The subject invention is directed to a method of making compounds having the formula: STR1 wherein R1 is alkyl, R2 is H or alkyl, R3 and R4 are H, halogen, amino, alkylamino, alkoxy, alkyl, OH, O, NO2 or combinations thereof, and X is CH or N, which compounds are useful as antihypertensive agents.

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