On the Absolute Configuration of threo-1,2-Diphenyl-2-hydroxyethylamine
نویسندگان
چکیده
منابع مشابه
Absolute configuration of 3,3'-diphenyl-[2,2'-binaphthalene]-1,1'-diol revisited.
The experimental vibrational circular dichroism, electronic circular dichroism, and optical rotatory dispersion spectra and corresponding quantum chemical predictions of 3,3'-diphenyl-[2,2'-binaphthalene]-1,1'-diol (VANOL) are used to confirm its absolute configuration as (+)(589)-(aR) or (-)(589)-(aS). A discrepancy in the literature crystal structure has been resolved by determining the X-ray...
متن کاملAbsolute structure and absolute configuration.
Fundamental notions concerning absolute structure and absolute configuration, and their determination from single-crystal diffraction measurements, are presented and reviewed. A glossary of terms with definitions useful in this field is provided. For absolute structure and its determination, the separate but interacting influences of the structure and the inversion-distinguishing power of an X-...
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2'-Deoxycytidine hydrochloride (C9H14N3Q4Cl) was crystallized from water as monoclinic needles, space group P21, with a=6-561, b= 17·659, c=5·125 A, P= 108·08° and two molecules per cell. The crystal structure has been determined by a three-dimensional X-ray diffraction analysis. A complete hemisphere of data (positive and negative values of both hand k) was collected with a General Electric XR...
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قاعده مقتضی و مانع در متون فقهی کم و بیش مستند احکام قرار گرفته و مورد مناقشه فقهاء و اصولیین می باشد و مشهور معتقند مقتضی و مانع، قاعده نیست بلکه یکی از مسائل ذیل استصحاب است لذا نگارنده بر آن شد تا پیرامون این قاعده پژوهش جامعی انجام دهد. به عقیده ما مقتضی دارای حیثیت مستقلی است و هر گاه می گوییم مقتضی احراز شد یعنی با ماهیت مستقل خودش محرز گشته و قطعا اقتضاء خود را خواهد داشت مانند نکاح که ...
15 صفحه اولAbsolute configuration of isoeichlerialactone
The title seco-dammarane triterpenoid, C(27)H(42)O(4) (systematic name: 3-{(3S,3aR,5aR,6S,7S,9aR,9bR)-6,9a,9b-trimethyl-3-[(R)-2-methyl-5-oxotetra-hydro-furan-2-yl]-7-(prop-1-en-2-yl)dodeca-hydro-1H-cyclo-penta-[a]naphthalen-6-yl}propanoic acid), has been isolated for the first time from the seeds of Aglaia forbesii. The mol-ecule has three fused rings and all rings are in trans-fused. The two ...
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ژورنال
عنوان ژورنال: Bulletin of the Chemical Society of Japan
سال: 1963
ISSN: 0009-2673,1348-0634
DOI: 10.1246/bcsj.36.1204