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2-phenyl-7,8,9,10-tetrahydropyrimido[4',5':4,5]thieno[2,3-b]quinoline-4(3H)-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

780757-83-7

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  • 2-phenyl-7,8,9,10-tetrahydropyrimido[4',5':4,5]thieno[2,3-b]quinoline-4(3H)-one

    Cas No: 780757-83-7

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780757-83-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 780757-83-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,8,0,7,5 and 7 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 780757-83:
(8*7)+(7*8)+(6*0)+(5*7)+(4*5)+(3*7)+(2*8)+(1*3)=207
207 % 10 = 7
So 780757-83-7 is a valid CAS Registry Number.

780757-83-7Relevant articles and documents

Synthesis of some thienotetrahydroquinoline derivatives

Kamal El-Dean,Shaker,Abo El-Hassan,Abdel Latif

, p. 335 - 345 (2015/02/02)

2-Thioxo-1,2,5,6,7,8-hexahydroquinoline-3-carbonitrile (2) was easily S-alkylated to produce alkyl mercapto derivatives 3a-g. The latter compounds were cyclized to afford thienotetrahydroquinolines 4a-g. Several pyrimidothienotetrahydroquinolines 5a-d, and 6a-d were obtained from the condensation of compounds 4c-f with different reagents. o-Aminocarbohydrazide derivative 11 was reacted with aromatic aldehydes, acetylacetone, nitrous acid and CS2 to afford compounds 12-15. Compound 24 was coupled with aryldiazonium chloride to afford arylazo derivatives 25. Also it condensed with aromatic aldehydes to give arylidene derivatives 26. The latter compounds were reacted with malononitrile to give pyrano derivative 27.

Synthesis of some thienotetrahydroquinoline derivatives

Kamal El-Dean,Shaker,Abo El-Hassan,Abdel Latif

, p. 335 - 345 (2007/10/03)

2-Thioxo-1,2,5,6,7,8-hexahydroquinoline-3-carbonitrile (2) was easily S-alkylated to produce alkyl mercapto derivatives 3a-g. The latter compounds were cyclized to afford thienotetrahydroquinolines 4a-g. Several pyrimidothienotetrahydroquinolines 5a-d, and 6a-d were obtained from the condensation of compounds 4c-f with different reagents. o-Aminocarbohydrazide derivative 11 was reacted with aromatic aldehydes, acetylacetone, nitrous acid and CS2 to afford compounds 12-15. Compound 24 was coupled with aryldiazonium chloride to afford arylazo derivatives 25. Also it condensed with aromatic aldehydes to give arylidene derivatives 26. The latter compounds were reacted with malononitrile to give pyrano derivative 27.

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