نتایج جستجو برای: staudinger reaction
تعداد نتایج: 412692 فیلتر نتایج به سال:
MÖSSBAUER EVIDENCE FOR VARIABILITY IN THE OXIDATION STATE OF ADIRONDACK LAVAS. R. V. Morris, G. A. McKay, D. W. Ming, G. Klingelhöfer, C. Schröder, D. Rodionov, and A. Yen. ARES, NASA Johnson Space Center, Houston, TX 77058 ([email protected]). Institut für Anorganische Chemie und Analytische Chemie, Johannes Gutenberg-Universität, Staudinger Weg 9, 55128 Mainz, Germany. Jet Propulsion ...
ROVERS: AN OVERVIEW. R. V. Morris, G. Klingelhöfer, D. W. Ming, C. Schröder, D. Rodionov, A. Yen, R. Gellert, and the Athena Science Team. ARES, NASA Johnson Space Center, Houston, TX 77058 ([email protected]). Institut für Anorganische Chemie und Analytische Chemie, Johannes Gutenberg-Universität, Staudinger Weg 9, 55128 Mainz, Germany. Jet Propulsion Laboratory, California Institute o...
during a survey on pistachio, pistacia vera l., pests in isfahan, iran, in 2015, some lepidopteran larvae living and feeding inside galls of the wrinkling pistachio aphid, forda hirsuta mordv., were observed. after laboratory rearing of these larvae, the moths were identified as altenia mersinella (staudinger, 1879) (lep.: gelechiidae) by the third author. this species has previously been repor...
An annotated list of 19 species Pterophoridae recorded from Pakistan is given. Five are new to this country, namely Platyptilia avicennai Ustjuzhanin et Kovtunovich, 2016, Cnaemidophorus rhododactylus (Denis Schiffermüller, 1775), Stenoptilia stigmatodactyla (Zeller, 1852), Hellinsia pectodactyla (Staudinger, 1859), and Amblyptilia sp. A synonymy established: Exelastis ebalensis (Rebel, 1907) =...
Two phosphate modifications were introduced into the DNA backbone using Staudinger reaction between 3’,5’-dinucleoside ?-cyanoethyl phosphite triester formed during synthesis and sulfonyl azides, 4-(azidosulfonyl)- N,N,N -trimethylbutan-1-aminium iodide (N+ azide) or p -toluenesulfonyl (tosyl Ts) azide, to provide either a zwitterionic phosphoramidate with N+ modification negatively charged for...
we describe here a suitable approach for the synthesis of n-unsubstituted monocyclic b-lactams under mild reaction conditions by the annelation of imines with substituted acetylchlorides. in this method the reaily available phtalimidoacetyl chloride were allowed to react with - dibenzylideneiminotoluene (hydrobenzamide) in the presence of an equimolar amount of triethylamine in refluxing toluen...
β-Cyclodextrin (β-CD) dimers have been prepared using the bioorthogonal Staudinger ligation for the first time. In addition to a known linker, methyl 2-(diphenylphosphanyl)terephthalate, a doubly active linker was specifically developed that enabled connection of two β-CD units in a single step and in aqueous/organic media, under mild conditions and with good yields. A three-carbon spacer betwe...
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