نتایج جستجو برای: acetic anhydride
تعداد نتایج: 21372 فیلتر نتایج به سال:
Journal:
:Journal of the American Chemical Society
1922
Journal:
:Agricultural and Biological Chemistry
1976
Journal:
:Nippon kagaku zassi
1952
Journal:
:The Journal of the Society of Chemical Industry, Japan
1971
Journal:
:Acta Chemica Scandinavica
1958
Journal:
:Canadian Journal of Chemistry
1972
Journal:
:Nippon kagaku zassi
1953
Journal:
:Nippon kagaku zassi
1953
Journal:
:NIPPON KAGAKU KAISHI
1974
Journal:
:Acta poloniae pharmaceutica
2011
Zienab M Nofal
Elsyed A Soliman
Somaia S Abd El-Karim
Magdy I El Zahar
Aladdin M Srour
Shalini Sethumadhavan
Timothy J Maher
A series of 1-(1H-benzimidazol-2-yl)-3-(substituted)-2-propen-1-one and its 1-methyl analogues 2c-h were synthesized and cyclized with different reagents such as ethyl cyanoacetate, thiourea, hydroxylamine hydrochloride, guanidinium sulfate, methylhydrazine, phenylhydrazine and/or hydrogen peroxide in different reactions to produce pyridones 3a,b, pyrimidinethione 4a,b, isoxazole 5a,b, aminopyr...
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