作者:Qifei Yang、Courtney Olmsted、Babak Borhan
DOI:10.1021/ol026527t
日期:2002.10.1
Monoamidation of 1,4-diaminobenzene with alpha-chiral carboxylic acids leads to a carrier strategy for absolute stereochemical determination with bis-zinc porphyrin tweezers by exciton-coupled circular dichroism (ECCD). The helicity induced in the porphyrin tweezers upon complexation with the derivatized carrier originates from the preferred conformation of the C(carbonyl)-C(chiral) bond. Correct ECCD signs
1,4-二氨基苯与α-手性羧酸的单酰胺化导致了通过双偶合卟啉镊子通过激子偶合圆二色性(ECCD)进行绝对立体化学测定的载体策略。与衍生化的载体络合后在卟啉镊子中诱导的螺旋性源自C(羰基)-C(手性)键的优选构象。旋转器可以预测正确的ECCD信号,旋转器将大的基团垂直于羰基,而小的基团面向卟啉。[反应:看文字]