英语语法分析

An improved and optimum process for preparing 2-Amylanthraquinone by re-acting t-amylbenzene with phthalic anhydride, involving Friedel-Crafts acylation (yield 80. 2%) and cyclization(yield 81.4%).

以叔戊苯和笨酐为原料，通过酰基化和关环合成了2—戊基蒽醌，改进和优化了各步合成工艺条件，酰化收率80.2％，关环产品收率81.4％。