Toluene Dioxygenase-Catalyzed Synthesis of cis-Dihydrodiol Metabolites from 2-Substituted Naphthalene Substrates: Assignments of Absolute Configurations and Conformations from Circular Dichroism and Optical Rotation Measurements
作者:Marcin Kwit、Jacek Gawronski、Derek R. Boyd、Narain D. Sharma、Magdalena Kaik、Rory A. More O'Ferrall、Jaya S. Kudavalli
DOI:10.1002/chem.200801686
日期:——
cis-Dihydrodiol metabolites have been isolated from naphthalene and six 2-substituted naphthalene substrates. Their structures and absolute configurations have been determined by a combination of calculated (TDDFT) and experimentally based circular dichroism (CD) and optical rotation (OR) methods. The "inverse" styrene helicity rule is shown to be incorrect for the interpretation of the CD spectra
已从萘和六个2-取代的萘底物中分离出顺式-二氢二醇代谢物。它们的结构和绝对构型已通过计算(TDDFT)和基于实验的圆二色性(CD)和旋光(OR)方法的组合来确定。显示“逆”苯乙烯螺旋度规则对于解释顺式-二氢二醇的CD光谱是不正确的。一个惊人的结论是CD光谱与苯乙烯发色团的螺旋度直接相关:也就是说,长波长Cotton效应的符号与苯乙烯扭转角的符号相同,而OR符号则取决于苯乙烯的绝对构型。烯丙基碳原子。