توجه: محتویات این صفحه به صورت خودکار پردازش شده و مقاله‌های نویسندگانی با تشابه اسمی، همگی در بخش یکسان نمایش داده می‌شوند.
۱NOVEL ONE POT THREE COMPONENT SYNTHESIS OF NEW SUBSTITUTED CHROMENOPYRIDAZINE DERIVATIVES
نویسنده(ها): ، ،
اطلاعات انتشار: اولین همایش ملی تکنولوژی های نوین در شیمی و پتروشیمی، سال
تعداد صفحات: ۶
The novel research reported here includes the synthesis of 3–aryl–5H– chromeno[4,3–c] pyridazin–3–one compounds. In this synthetic strategy, the acetophenone derivatives during two steps,are converted to 3–aryl–5H–chromeno[4,3–c] pyridazin–3–one heterocycles. In step one, acetophenonederivatives are oxidized to the corresponding arylglyoxals via SeO2 and in the subsequent step in reaction with 4–hydroxycoumarine in the presence of molar ratio of hydrazinium dihydrochloride in ethanol, they are converted to new pyridazine compounds as 3–aryl–5H–chromeno[4,3–c] pyridazin–3– one.<\div>

۲ONE–POT, THREE COMPONENT SYNTHESIS OF NEW SUBSTITUTED 3–ARYL–7–THIOXO–7,8– DIDYDROPYRIMIDO[4,5–c]PYRIDAZINE–5(6H)– ONES AS POTENTIAL MONOAMINE OXIDASE INHIBITORS
نویسنده(ها): ، ،
اطلاعات انتشار: اولین همایش ملی تکنولوژی های نوین در شیمی و پتروشیمی، سال
تعداد صفحات: ۴
A number of new substituted 3–aryl–7–thioxo–7,8–dihydropyrimido[4,5–c]pyridazin– 5(6H)–one derivatives have been synthesized by one pot three component reaction of N–ethyl–2–thiobarbituric acid with arylglyoxals in the presence of molar amount of hydrazininium dihydrochloride at reflux condition in ethanol.<\div>

۳A SIMPLE ONE–POT STRATEGY FOR EFFICIENT SYNTHESIS OF NOVEL SYMMETRIC PYRANOPYRIMIDINE DERIVATIVES
نویسنده(ها): ، ، ،
اطلاعات انتشار: اولین همایش ملی تکنولوژی های نوین در شیمی و پتروشیمی، سال
تعداد صفحات: ۵
Novel symmetric fused pyrano[2,3–d]pyrimidine derivatives were synthesized in excellent yields by a one pot two–component reaction of arylglyoxals and 1,3–dialkyl–2–thiobarbituric acids inethanol at room temperature. This is the first protocol to be reported for the synthesis of 5 aryloyl–1,3,7,9–tetraalkyl–2,8–dithioxo–2,3,8,9–tetrahydro–1H–pyrano[2,3–d:6,5–d'] dipyrimidine 4,6(5H,7H)– diones and the significant features of the present protocol are simplicity, high yields, a simple isolation procedure, and high chemoselectivity<\div>

۴FACILE SYNTHESIS OF NEW SUBSTITUTED PYRANO[2,3–d]PYRIMIDINE DERIVATIVES
نویسنده(ها): ، ، ،
اطلاعات انتشار: اولین همایش ملی تکنولوژی های نوین در شیمی و پتروشیمی، سال
تعداد صفحات: ۴
Novel 5–aryloyl substituted pyrano[2,3–d]pyrimidine derivatives were synthesized via the condensation of arylglyoxals with barbituric acid in water at room temperature. The favour products were formed by treatment of arylglyoxals with barbituric acid during 20–40 minutes. All pyranopyrimidine derivatives had clustered water in their molecular structure that this phenomenon was proved by the consideration of their 1H–NMR spectra<\div>

۵RED MUD CATALYZED ONE–POT SYNTHESIS OF 3–SUBSTITUTED COUMARINES UNDER MICROWAVE IRRADIATION
نویسنده(ها):
اطلاعات انتشار: دومین همایش ملی تکنولوژی های نوین در شیمی و پتروشیمی، سال
تعداد صفحات: ۷
One–pot synthesis of 3–substituted coumarines using Red mud (RM) which emerges as a by–product from the alumina producing process as catalyst via Knoevenagel condensation of 2– hydroxybenzaldehyde derivatives and malonate derivatives investigated. Reaction carried out undervarious conditions and the best results obtained when the reaction done under microwave irradiation. RM showed an efficient catalytic activity in this reaction. The catalyst can be used for at least four times after reactivation without remarkable losing in its efficiency<\div>
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