نتایج جستجو برای: 12 aryl 891012 tetrahydrobenzoaxanthen 11 one
تعداد نتایج: 2670197 فیلتر نتایج به سال:
an efficient construction of 2-(n-arylamino)benzaldehydes and n-aryl-3,10-dihydroacridin-1(2h)-one derivatives starting from 2- hydroxybenzaldehydes has been developed. the synthesis of n-aryl-3,10-dihydroacridin-1(2h)-ones is based on the knoevenagel condensation of dimedone to various 2-(n-arylamino)benzaldehydes, followed by an intramolecular enamination in the presence of 20 mol% of nanocry...
New efficient synthetic methods in pyrazoline and pyrazolopyrazine chemistry have been developed starting from 2,2-dichlorovinylacetophenones 1, which were sequentially transformed into 3-aryl-5-dichloromethyl-1-(2-hydroxiethyl)-2-pyrazolines 2, 3-aryl-5-dichloromethyl-1-(2-O-tosylhydroxyethyl)-2-pyrazolines 3, 3-aryl-5-dichloromethyl-1-(2-azidoethyl)-2-pyrazolines 4, 3-aryl-5-dichloromethyl-1-...
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