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18805-23-7

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18805-23-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 18805-23-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,8,0 and 5 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 18805-23:
(7*1)+(6*8)+(5*8)+(4*0)+(3*5)+(2*2)+(1*3)=117
117 % 10 = 7
So 18805-23-7 is a valid CAS Registry Number.

18805-23-7Relevant articles and documents

Microwave-assisted from synthesis of 2-arylamino-2-imidazolines on a solid support

Genc, Murat,Servi, Sueleyman

, p. 142 - 147 (2007/10/03)

An efficient synthesis of 2-arylamino-2-imidazolines from dimethyl N-aryldithioimidocarbonates and ethylenediamine on solid support under microwave irradiation has been developed. The reaction time has been reduced from hours to minutes with improved yiel

The efficient synthesis of 2-arylamino-2-imidazolines, 2-heteroaryl- substituted benzimidazoles, and their morpholin-4-ylmethyl derivatives

Servi, Sueleyman

, p. 119 - 123 (2007/10/03)

2-Heteroaryl-substituted 1H-benzimidazoles were synthesized in good yields by heating the HSO3 adducts of heteroaromatic aldehydes with o-phenylenediamine in DMF under reflux. This procedure is more general and shorter than earlier methods. 2-Arylamino-2-imidazolines were prepared by heating dimethyl aryldithioimidocarbonates and ethylenediamine under reflux. The imine-enamine tautomerization of 2-arylamino-2-imidazolines was investigated by means of 1H-NMR spectroscopy. Morpholin-4-ylmethyl derivatives of the benzimidazole and imidazoline products were synthesized regioselectively by treatment with morpholine and formaldehyde.

A Facile Synthesis of Dimethyl N-Aryldithiocarbonimidates and 2-Arylaminobenzimidazoles

Garin, J.,Melendez, E.,Merchan, F.L.,Tejel, C.,Tejero, T.

, p. 375 - 376 (2007/10/02)

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