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153681-86-8

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153681-86-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 153681-86-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,3,6,8 and 1 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 153681-86:
(8*1)+(7*5)+(6*3)+(5*6)+(4*8)+(3*1)+(2*8)+(1*6)=148
148 % 10 = 8
So 153681-86-8 is a valid CAS Registry Number.

153681-86-8Relevant articles and documents

Reactions of hydroxyglycines. New synthetic routes to 4-phenylquinazoline derivatives

Hoefnagel,Van Koningsveld,Van Meurs,Peters,Sinnema,Van Bekkum

, p. 6899 - 6912 (1993)

Reaction of hydroxyglycine with 2-aminobenzophenones gives 1,2-dihydro-4-phenyl-quinazoline-2-carboxylic acids in high yields and under mild conditions. These can be smoothly converted into the corresponding 3,4-dihydro isomers and into quinazoline derivatives via rearrangement and oxidation by air, respectively. The X-ray crystallographic structure of 6-chloro-1,2-dihydro-1-methyl-4-phenylquinazoline-2-carboxylic acid shows the carboxylate group at C(2) and the methyl group at N(1) to be in axial positions.

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