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19340-82-0

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19340-82-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 19340-82-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,3,4 and 0 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 19340-82:
(7*1)+(6*9)+(5*3)+(4*4)+(3*0)+(2*8)+(1*2)=110
110 % 10 = 0
So 19340-82-0 is a valid CAS Registry Number.

19340-82-0Relevant articles and documents

CATALYST FOR CONVERTING ESTER TO AMIDE USING HYDROXYL GROUP AS ORIENTATION GROUP

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Paragraph 0060; 0072, (2021/03/13)

Provided is a method for amidating a hydroxy ester compound at a high chemical selectivity. The amidation reaction method for a hydroxy ester compound comprises, in the presence of a catalyst containing a compound of a transition metal of the group 4 or group 5 in the periodic table, reacting at least one kind of hydroxy ester compound selected from the group consisting of an α-hydroxy ester compound, a β-hydroxy ester compound, a γ-hydroxy ester compound and a δ-hydroxy ester compound with an amino compound so as to amidate an ester group having a hydroxyl group at the α-, β-, γ- or δ-position of the hydroxy ester compound.

Reaction of Cyclopropanamines with Hypochlorite

Vaidyanathan, Ganesan,Wilson, Joseph W.

, p. 1815 - 1820 (2007/10/02)

Ethylene was formed in 65percent yield when 1-(1-piperidino)cyclopropanol 6, was treated with hypochlorite.This observation raised the possibility that 1-aminocyclopropanecarboxylic acids (ACCs) could yield ethylene by a mechanism that involves (1) decarboxylation to a 1-aminocyclopropanol, followed by (2) a fragmentation of the carbinolamine to ethylene induced by a hypochlorite equivalent.Although this mechanism could be ruled out only for 1e, no evidence could be found for it in the reactions of other ACCs, 1a-f, with hypochlorite.The fact that 1b-cis-2,3-d2 yieldedonly ethylene-cis-1,2-d2 is consistent with either the mechanism described above or a nitrenium ion mechanism.In the reaction of cyclopropanamines with neutral hypochlorite, ethylene is not the major product.From the primary and secondary amino acids 1a-c, a 3-hydroxypropanenitrile or propanamide, 2a-c, probably the product of a nucleophilic ring-opening step followed by decarboxylation, is formed.Similar products are formed from other cyclopropanamines: 2a from 1g, 2d from 1h, 2e and 2f from 1i, and lactone 5 from 1j.

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