A liquid-crystalline polyester production method with a shortened reaction time and improved productivity per unit time by using an organic basic compound containing one nitrogen atom in a molecule is achieved by a liquid-crystalline polyester production method comprising carrying out acylation reaction and/or ester-exchange in the presence of an organic basic compound containing one nitrogen atom in one molecule and satisfying the following inequality (1):
0<
A+
0.4×
B
(1)
wherein, A and B satisfy A=(Ec
h+
−Ec)/(Ep
h+
−Ep)}−1 and B=(φf/φfp)−1;
Ec denotes the heat of formation of the organic basic compound; Ec
h+
denotes the heat of formation of a compound coordinated by proton; Ep denotes the heat of formation of pyridine; and Ep
h+
denotes the heat of formation of pyridine coordinated by proton to the nitrogen atom; φf and φfp independently denote parameters relevant to the steric angles.
通过使用分子中含有一个氮原子的有机碱性化合物,实现了一种缩短反应时间和提高单位时间生产率的液晶聚酯生产方法,其包括在有机碱性化合物的存在下进行酰化反应和/或酯交换,并满足以下不等式(1):0