作者:Marcus A. Tius、Xue-qin Gu、Joel W. Truesdell、Selvaraj Savariar、P. P. Crooker
DOI:10.1055/s-1988-27458
日期:——
A synthesis of L-(-)-4-(2-methylbutyl)phenyl4′-(2-methylbutyl)bi-phenyl-4-carboxylate (CE2) and of related chiral liquid crystals has been reported; nevertheless, a detailed experimental and spectrometric characterization of both the intermediates and the final product has been lacking in the literature. We present here the first synthesis of the enantiomer of CE2 with full experimental details including spectroscopic data for each of the intermediates. The description of the synthesis of (R)-(+)-2-methylbutanyl will be broadly useful for preparing other liquid crystals with optically active (R)-2-methylbutyl side chains.
L-(-)-4-(2-甲基丁基)苯基-4′-(2-甲基丁基)双苯基-4-羧酸酯(CE2)和相关手性液晶的合成方法已有报道;然而,文献中一直缺乏对中间体和最终产物的详细实验和光谱表征。 我们在此介绍 CE2 对映体的首次合成,以及包括每个中间体光谱数据在内的完整实验细节。(R)-(+)-2-甲基丁酰基的合成说明将对制备具有光学活性 (R)-2- 甲基丁基侧链的其他液晶有广泛的帮助。