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59023-30-2

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59023-30-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 59023-30-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,9,0,2 and 3 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 59023-30:
(7*5)+(6*9)+(5*0)+(4*2)+(3*3)+(2*3)+(1*0)=112
112 % 10 = 2
So 59023-30-2 is a valid CAS Registry Number.

59023-30-2Downstream Products

59023-30-2Relevant articles and documents

Reactions of 1,2-Dimethylimidazole, Particularly its Metallation

Iddon, Brian,Lim, Bee Lan

, p. 271 - 277 (2007/10/02)

A re-examination of the metallation of 1,2-dimethylimidazole has shown that, after quenching of reaction mixtures with suitable reagents, single products may arise from substitution either in the 2-methyl group or in the 5-position or mixtures of both products may arise, depending on the metallating reagent, solvent, and reaction conditions. 1,2-Dimethylimidazol-5-yl-lithium was prepared by reaction of 1,2-dimethyl-5-trimethylstannylimidazole (13) with n-butyl-lithium in tetrahydrofuran at -100 deg C.The corresponding 5-trimethylsilyl compounds (12) was metallated by n-butyl-lithium exclusively in the 2-methyl group. 1,2-Dimethylimidazol-5-yl-lithium was shown to undergo transmetallation reactions at temperatures higher than -100 deg C.An improved procedure is given for the synthesis of 1,2-dimethylimidazole-5-carbaldehyde via hydroxymethylation of 1,2-dimethylimidazole and oxidation of the 5-hydroxymethyl group with nitric acid.

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