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21286-78-2

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21286-78-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21286-78-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,2,8 and 6 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 21286-78:
(7*2)+(6*1)+(5*2)+(4*8)+(3*6)+(2*7)+(1*8)=102
102 % 10 = 2
So 21286-78-2 is a valid CAS Registry Number.

21286-78-2Relevant articles and documents

The efficient direct synthesis of N,O-acetal compounds as key intermediates of discorhabdin A: Oxidative fragmentation reaction of α-amino acids or β-amino alcohols by using hypervalent iodine(III) reagents

Harayama, Yu,Yoshida, Masako,Kamimura, Daigo,Wada, Yasufumi,Kita, Yasuyuki

, p. 4893 - 4899 (2006)

Hypervalent iodine(III) reagents are readily available, easy to handle, and have a low toxicity and similar reactivities to those of heavy metal reagents, and hence they are used for various oxidative reactions. The oxidative cleavage of alkynes or carbon

Synthesis of unnatural amino acids from serine derivatives by β-fragmentation of primary alkoxyl radicals

Boto, Alicia,Gallardo, Juan A.,Hernandez, Dacil,Hernandez, Rosendo

, p. 7260 - 7269 (2008/02/11)

(Chemical Equation Presented) The fragmentation of primary alkoxyl radicals has been scarcely used in synthesis since other competing processes (such as oxidation or hydrogen abstraction) usually predominate. However, when serine derivatives were used as

INDIRECT ELECTROCHEMICAL α-METHOXYLATION OF N-ACYL AND N-CARBOALKOXY α-AMINO ACID ESTERS AND APPLICATION AS CATIONIC GLYCINE EQUIVALENTS

Ginzel, Klaus-Dieter,Brungs, Peter,Steckhan, Eberhard

, p. 1691 - 1702 (2007/10/02)

Indirect electrochemical methoxylation of N-acyl and N-carboalkoxy α-amino acid esters in α-position to nitrogen is possible, if chloride is used as mediator.The course of the reaction depends upon the protecting group as well as upon the amino acid side-chain.Increased electron withdrawing effects of the protecting group are accelerating the reaction.On the other hand aliphatic side-chains are diminishing the reactivity.High chloride ion concentrations improve the current yields surprisingly strong.

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