نتایج جستجو برای: syntheses
تعداد نتایج: 11788 فیلتر نتایج به سال:
ةصلاخلا بكرملل ةدیدج تاقتشم ریضحت ىلا ثحبلا يمری 4,3,1 ةیتلاا تلاعافتلا ءارجا للاخ نم لوزایادایاث : ًلاوأ : ب كرملل فیش ةدعاق ریضحت ) 2 و نیما 5 و تبكرم 4,3,1 لوزا یادایاث ( يلیفو یلكوینلا ضیو عتلا ءارجاو ةدعاقلل يرتسلاا ب كرملا نیو كت ى لا يدؤ یل مویدو صلا دیسكوثیا دو جوب ل ثیلاا تاتیسا ومورب عم ) 3 ( ، يذ لا یازاردیھلا عم ھتلعافم تمت ن 99 % د یازاردیھلا قتشم ریضحتل ) 4 ( فیش دعاوق نم د یدع...
Synthesis by completion is used for a fully automated system for program transformation. In the paper, we present a set of transition rules for a full automation of a sound and terminating synthesis process which preserves orthogonality and termination of a constructor-based rewrite system.
The synthesis of three Le(x) derivatives from one common protected trisaccharide is reported. These analogues will be used respectively for competitive binding experiments, conjugation to carrier proteins and immobilization on gold. An N-acetylglucosamine monosaccharide acceptor was first glycosylated at O-4 with a galactosyl imidate. This coupling was performed at 40° C under excess of BF₃.OEt...
Total syntheses of (+)-7-epi-goniofufurone, (+)-goniopypyrone and (+)-goniofufurone have been achieved from an advanced common precursor formed from D-(+)-mannitol by changing the carbinol protection profile.
The first syntheses of mono- and dianions of stannole were accomplished by transmetallation or reduction of the novel bi(1,1-stannole).
The first total syntheses of newly isolated polyazole natural products azolemycins A-D, along with the synthesis of the tetra-oxazole non-natural analogue, are described.
ion reactions from alkyl hydrocarbon bonds was studied starting from the reaction of DCP-derived radicals with pentadecane. Syntheses and Applications of Carbon Nanotubes and Their Composites 90
The syntheses of two new spirolactones are described. Each compound was obtained as an off-white solid in 66% yields from 4-hydroxy-3-nitrobenzaldehyde.
Catalytic asymmetric syntheses of various isoxazoline-N-oxides have been accomplished by asymmetric phase-transfer conjugate addition of bromomalonate to nitroolefins and subsequent ring-closing O-alkylation.
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