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13211-11-5

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13211-11-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 13211-11-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,2,1 and 1 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 13211-11:
(7*1)+(6*3)+(5*2)+(4*1)+(3*1)+(2*1)+(1*1)=45
45 % 10 = 5
So 13211-11-5 is a valid CAS Registry Number.

13211-11-5Relevant articles and documents

THE REACTION OF N,N-DIBENZYLCARBAMOYL CHLORIDE WITH N-NITROSOHYDROXYLAMINE

Nakajima, Masayuki,Anselme, Jean-Pierre

, p. 139 - 140 (1984)

The action of N,N-dibenzylcarbamoyl chloride (2) on the sodium salt of N-nitrosohydroxylamines (1) in dry acetonitrile at reflux leads to products whose formation may be rationalized in terms of carbamoylation at either oxygen of the bidentate N-nitrosohydroxylamines.

Metal-Free Synthesis of 1,3,4-Oxadiazoles from N′-(Arylmethyl)hydrazides or 1-(Arylmethyl)-2-(arylmethylene)hydrazines

Shang, Zhenhua,Chu, Qianqian,Tan, Sheng

, p. 1032 - 1040 (2015/03/30)

An efficient and versatile metal-free synthesis of 1,3,4-oxadiazoles from N′-(arylmethyl)hydrazides or 1-(arylmethyl)-2-(arylmethylene)hydrazines through oxidative dehydrogenation is reported. A range of 2,5-disubstituted 1,3,4-oxadiazoles were prepared by treating N′-(arylmethyl)hydrazides with (diacetoxyiodo)benzene in acetonitrile or by treating 1-(arylmethyl)-2-(arylmethylene)hydrazines with [bis(trifluoroacetoxy)iodo]benzene in methyl tert-butyl ether. Aldehyde N-acylhydrazones and aldazines were initially generated in situ as intermediates.

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