نتایج جستجو برای: 4h pyran
تعداد نتایج: 7801 فیلتر نتایج به سال:
A novel nano-initiator containing kojic acid moiety, [5-(benzyloxy)-4-oxo-4H-pyran-2-yl)methyl-2-bromo-2-methylpropanoate was synthesized by the reaction of 5-(benzyloxy)-2-(hydroxymethyl)-4H-pyran-4-one with 2-bromoisobutyryl bromide in triethylamine and used as initiator in the atom transfer radical polymerization (ATRP) of styrene and methyl methacrylate in the presence of Cu(0)/CuCl2and N,N...
ABSTRACT. The chemical constituents of the methanolic extract Emex spinosa shoots were primarily characterized by gas-chromatography-mass spectrometry analysis (GC-MS), forty components identified. major ethyl 2-hydroxycyclohexane-1-carboxylate (10.11%), 3,5-dihydroxy-6-methyl-2,3-dihydro-4H-pyran-4-one (38.09%), 2-propyltetrahydro-2H-pyran-3-ol (5.75%), oleic acid (8.02%), and methyl (E)-octad...
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