Crystal structures of 8-oxa-6-azabicyclo(3.2.1)octan-7-one and the 4(e)-bromo-substituted derivative.

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概要

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• The crystal structures of the bicyclic oxalactam, 8-oxa-6-azabicyclo[3.2.1]octan-7-one(BOL) and the 4(<I>e</I>)-bromo-substituted derivative(Br–BOL) were determined by the X-ray diffraction method. Crystal data: (BOL) <I>P</I>2<SUB>1</SUB>2<SUB>1</SUB>2<SUB>1</SUB>, <I>a</I>=10.926(3), <I>b</I>=9.115(2), <I>c</I>=6.280(2), Å, <I>Z</I>=4; (Br–BOL) <I>P</I>2<SUB>1</SUB>2<SUB>1</SUB>2<SUB>1</SUB>, <I>a</I>=10.708(3), <I>b</I>=11.053(3), <I>c</I>=6.208(2), Å, <I>Z</I>=4. Refinements were carried out by the full-matrix least-squares method. <I>R</I> values are; (BOL) 0.050 for 601 reflections, (Br–BOL) 0.028 for 866 reflections. Both structures are quite similar to each other. The packing scheme of BOL is essentially the same as that of Br–BOL. Molecules are linked by N–H···O hydrogen bonds around a two-fold screw axis, giving rise to infinite chains extended along the c axis.

• 公益社団法人 日本化学会の論文

著者

• Ashida Tamaichi

  Department Of Biotechnology School Of Engineering Nagoya University

• Hashimoto Kazuhiko

  Faculty Of Engineering Kougakuin University

• Sumitomo Hiroshi

  Faculty of Agriculture, Nagoya University

• Yamane Takashi

  Department of Applied Chemistry and Department of Synthetic Chemistry, Faculty of Engineering, Nagoya University

• Gu Yuanxin

  Department of Applied Chemistry, Faculty of Engineering, Nagoya University

• Hashimoto Kazuhiko

  Faculty of Agriculture, Nagoya University

• Ashida Tamaichi

  Department of Applied Chemistry and Department of Synthetic Chemistry, Faculty of Engineering, Nagoya University

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