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60083-18-3

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60083-18-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 60083-18-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,0,0,8 and 3 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 60083-18:
(7*6)+(6*0)+(5*0)+(4*8)+(3*3)+(2*1)+(1*8)=93
93 % 10 = 3
So 60083-18-3 is a valid CAS Registry Number.

60083-18-3Relevant articles and documents

Arylhydrazonals as the aldehyde component in Baylis-Hillman reactions

Al-Awadi, Nouria A.,Ibrahim, Maher R.,Abdelhamid, Ismail A.,Elnagdi, Mohamed H.

, p. 8202 - 8205 (2008/12/22)

Arylhydrazonals were added to acrylonitrile or methyl vinyl ketone in the presence of DABCO or benzotriazole to yield the intermediate Baylis-Hillman adduct that cyclized under the reaction conditions with water elimination to yield dihydropyridazines. A pyridazine reacted with DMAD to yield a pyridine via a [4+2] Diels-Alder addition followed by retro Diels-Alder elimination of methylene aniline. Two pyridazines were condensed with DMFDMA to yield the corresponding enaminones that reacted with NH2NH2 to afford the pyrazolylpyridazines.

Studies with functionally substituted heteroaromatics: A novel route for the synthesis of 1-aryl-6-oxopyridazinones, 1-arylpyridazine-6-imines and 1-aryl-6-imino-4-pyridazinals

Al-Omran, Fatima,Abdel Khalik, Mervat Mohammed,Abou-Elkhair, Adel,Elnagdi, Mohammed Hilmy

, p. 91 - 94 (2007/10/03)

Aryldiazonium salts couple with the 3-dimethylamino-1-substituted enones 1 a-c to yield 2-arylhydrazono-3-oxo-3-substituted-propanals which are excellent precursors for the synthesis of pyridazinones. The coupling reaction of 2-cyano-5-dimethylamino-3-substituted-penta-2,4-dienonitrile 12 a-b with benzene diazonium salts in ethanolic sodium hydroxide gives the pyridazinals 13a,b.

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