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ÖÐÒ©2000(½ð±Ò+3): ллӦÖú¡£ 2011-10-03 18:50:59
É꽨Óî(½ð±Ò+5): Äܲ»ÄܰÑÎÄÏ×·¢ÎÒÓÊÏ䣬лл£¡shenjianyu111@163.com 2011-10-05 16:35:29
CAS Registry Number: 22281-33-0
C19 H18 Cl N3 O3
Pyrimido[4,5-b]quinoline-2,4,6(1H,3H,7H)-trione, 5-(4-chlorophenyl)-5,8,9,10-tetrahydro-8,8-dimethyl-

1. Rapid and efficient synthesis of fused heterocyclic pyrimidines under ultrasonic irradiation By Mosslemin, Mohammad Hossein; Nateghi, Mohammad Reza From Ultrasonics Sonochemistry (2009),  Volume Date 2010, 17(1), 162-167. Language: English, Database: CAPLUS
Some fused heterocyclic pyrimidines have been synthesized in high yields using ultrasound irradn. in a one-pot, three-component and efficient process by condensation reaction of barbituric acids, aldehydes and a series of enamines in water.  Prominent among the advantages of this new method are operational simplicity, good yields in short reaction times and easy work-up procedures employed.

2. Condensation of arylidenebarbituric acids with 3-amino-5,5-dimethyl-2-cyclohexen-1-one By Pelcere, J.; Grinsteins, E.; Stankevich, E. I.; Vanags, G. Edited by Hillers, S From Khim. Geterotsikl. Soedin., Sb. 1:  Azotsoderzhashchie Geterotsikly (1967), 406-10. Language: Russian, Database: CAPLUS
To find new physiol. active compds., the title condensation was carried out, and thus were obtained 2,4,6-trioxo-5-[p-(R-substituted)-phenyl] -8,8 - dimethyl - 2 - (R1-substituted) - 1,2,3,4,5,6,7,8,9,10 -decahydropyrimido[4,5 - b]-quinolines (I).  Thus, benzalbarbituric acid was refluxed with 3-amino-5,5-dimethyl-2-cyclohexen-1-one in AcOH 2 hrs. to give 64% I (R = R1 = H) (Ia), m. 335-7¡ã (decompn.), also prepd. in 71% yield by condensation of 4-aminouracil, demidone, and BzH as above.  Na salt m. 350¡ã.  Also were prepd. by the 1st method the following I [R, R1, m.p. (decompn.), and % yield g...
3Â¥2011-10-01 23:29:43
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