scholarly journals Studies on Pyrimidine Derivatives and Related Compounds. LXXVII. Reaction of Thiamine Analogues with Diethyl Benzoylphosphonate

1973 ◽  
Vol 21 (4) ◽  
pp. 770-784 ◽  
Author(s):  
AKIRA TAKAMIZAWA ◽  
HIROSHI HARADA
Keyword(s):  
Pyrimidine Derivatives ◽  
Related Compounds ◽  
Thiamine Analogues

scholarly journals An efficient synthesis of pyrido[2,3-d]pyrimidine derivatives and related compounds under ultrasound irradiation without catalyst

2008 ◽  
Vol 15 (3) ◽  
pp. 217-221 ◽  
Author(s):  
Shujiang Tu ◽  
Longji Cao ◽  
Yan Zhang ◽  
Qingqing Shao ◽  
Dianxiang Zhou ◽  
...  
Keyword(s):  
Ultrasound Irradiation ◽  
Efficient Synthesis ◽  
Pyrimidine Derivatives ◽  
Related Compounds

Synthesis of Some Pyrazolo [Diazepine, Pyrazole, Isoxazole and Pyrimidine] Derivatives and Related Compounds

1980 ◽  
Vol 35 (10) ◽  
pp. 1313-1316 ◽  
Author(s):  
El-Sayed Afsah ◽  
Fathy A. Amer ◽  
Momdouh Soafan
Keyword(s):  
Acetic Anhydride ◽  
Acid Derivative ◽  
Pyrimidine Derivatives ◽  
Related Compounds

Abstract 4-Arylidene-3-methyl-1-phenyl-2-pyrazolin-5-ones (1a-d) undergoes condensation with diethylmalonate, p-nitroacetophenone and/or 3-acetyl-pyridine under Michael condition to give compounds 2, 3 and 4, respectively. Treatment of 3 and 4 with hydrazine afforded the pyrazolodiazepines 7 and 8, respectively. Interaction of la with diethyl phenyl-malonate gave the Michael product 9, which undergoes hydrolysis, decarboxylation and cyclisation to give the indanone derivative (11). Condensation of 1c with hydrazine, hydroxylamine and urea gives compounds 12, 13 and 14, respectively. Cyclisation of the Michael compound 15 gives the benzopyranopyrazole (14). When 1c was subjected to Riemer-Tiemann reaction gives compounds 17 and 18. Acetic anhydride treatment of 18 gives the acetyl cresotic acid derivative (19).

Synthesis of amino acids and related compounds. 42. A novel transformation of imidazolines into 2,4,6-trisubstituted pyrimidine derivatives

1993 ◽  
Vol 58 (23) ◽  
pp. 6354-6359 ◽  
Author(s):  
Masahiko Seki ◽  
Hitoshi Kubota ◽  
Kazuo Matsumoto ◽  
Akio Kinumaki ◽  
Tadamasa Date ◽  
...  
Keyword(s):  
Amino Acids ◽  
Pyrimidine Derivatives ◽  
Related Compounds
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