Stereochemistry of<i>N</i>-Benzoyl-5-substituted-1-benzazepines Revisited: Synthesis of the Conformationally Biased Derivatives and Revision of the Reported Structure
作者:Hidetsugu Tabata、Tetsuya Yoneda、Tomohiko Tasaka、Shigekazu Ito、Tetsuta Oshitari、Hideyo Takahashi、Hideaki Natsugari
DOI:10.1021/acs.joc.5b02900
日期:2016.4.15
with a substituent at C6 and C9, respectively. Detailed examination of the stereochemistry (i.e., conformation and configuration) of these N-benzoyl-1-benzazepines by X-ray crystallographic analysis, VT NMR, and DFT calculations revealed new physicochemical aspects of these heterocycles including revision of the stereochemistry previously reported.
的顺式(一- [R *,5 R *)和反(一个小号*,5 R *)非对映体ñ -苯甲酰-C5取代的-1-苯并吖庚因源于在C5和上述Ar-N的手性(C = O首先通过分别用C6和C9处的取代基偏向构象来立体选择性地合成α)轴。通过X射线晶体学分析,VT NMR和DFT计算,对这些N-苯甲酰基-1-苯并ze庚因的立体化学(即构象和构型)进行了详细检查,揭示了这些杂环的新物理化学方面,包括先前报道的立体化学的修订。