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6-methyl-3-(4-methylphenyl)-3,4-dihydroquinazoline is a chemical compound with the molecular formula C16H17N. It is a derivative of quinazoline, a heterocyclic organic compound with a fused benzene and pyrazine ring system. This specific compound features a methyl group at the 6th position, a 4-methylphenyl group at the 3rd position, and a dihydro functional group, which indicates the presence of two hydrogen atoms attached to the carbon atoms of the quinazoline ring. The compound is known for its potential applications in medicinal chemistry, particularly as a building block for the synthesis of various bioactive molecules. Its structure and properties make it a valuable intermediate in the development of new drugs and pharmaceuticals.

840-59-5

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840-59-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 840-59-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 8,4 and 0 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 840-59:
(5*8)+(4*4)+(3*0)+(2*5)+(1*9)=75
75 % 10 = 5
So 840-59-5 is a valid CAS Registry Number.

840-59-5Relevant academic research and scientific papers

Ru(II)-arene complexes with N-substituted 3,4-dihydroquinazoline ligands and catalytic activity for transfer hydrogenation reaction

Mercan, Deniz,?etinkaya, Engin,?ahin, Ertan

supporting information, p. 74 - 81 (2013/07/19)

In this study, N-coordinated 3,4-dihydroquinazoline ruthenium(II) complexes were synthesized by the cleavage reaction of [RuCl2(p-cymene)] 2 with N-substituted 3,4-dihydroquinazolines. In addition, the X-ray crystal structure of 2,4,6-trimethylbenzyl substituted 3,4-dihydroquinazoline Ru(II) complex (1a) is reported. Furthermore, the resulting piano-stool complexes were evaluated as transfer hydrogenation catalysts for reduction of acetophenone in the presence of 2-propanol and KOH at 82°C. All the complexes showed good to excellent performance after 1 h in the conversion of acetophenone to alcohol and the reaction rate was found to be sensitive to changes on the N-substituent. Additionally, the most active catalyst 1a was used in transfer hydrogenation of different ketones to investigate the effect of substituents on ketones.

Two isolated intermediates of the Tr?ger's base: synthesis and mechanism

Wan, Yu,Yuan, Rui,Zhang, Wei-chao,Shi, Yan-hui,Lin, Wei,Yin, Wei,Bo, Rong-cheng,Shi, Jing-jing,Wu, Hui

experimental part, p. 3405 - 3409 (2010/06/21)

By controlling the amount of catalyst 1-methyl-3-(2-(sulfooxy)ethyl)-1H-imidazol-3-ium chloride, two new intermediates of Tr?ger's bases (11, 1,6-dimethyl-3-(4-methylphenyl)-1,4-dihydroquinazolin-3-ium tetrafluoroborate and 12, 8-methyl-2,5-bis-(4-methylp

A novel isocyanate reaction - The formation and structure of unexpected cycloadducts

Tietz, Helmuth,Rademacher, Otto,Zahn, Gernot

, p. 2105 - 2112 (2007/10/03)

Phenyl isocyanate reacts with six-membered cyclic formamidines, e.g. with substituted 3,4-dihydroquinazolines 1, at ambient temperature in an expected route to give the 1,3,5-triazines 4 by [2+2+2] cycloaddition. However, at elevated temperatures the unex

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