By the use of probability method, the sol-gel distribution equations including intramolecular reaction of sol are deduced.
本文用概率方法推导出包括溶胶中分子内环化反应的溶胶凝胶分配方程。
By the use of probability method, the sol-gel distribution equations including intramolecular reaction of sol are deduced. The theoretical and experimental values are coincident.
本文用概率方法推导出包括溶胶中分子内环化反应的溶胶凝胶分配方程。由此方程计算出的理论值同实验值符合很好。
Levetiracetam was prepared from L-methionine via reduction-dethiomethylation, esterification, ammonolysis, amidation and intramolecular cyclocondensation reaction with 44.6% overall yield.
以蛋氨酸为原料经还原脱硫甲基化、酯化、氨解、酰胺化及分子内缩和成环4步反应合成得到了左乙拉西坦，总收率44.6%。
The reaction is intramolecular and hence fast and clean.
此反应属分子内反应，因而快速且干净利索。
From the reaction of 2,3 dihydro 2 methyl 4 phenyl 1,5 benzothiazepines with diazozcetic ester an unexpected ring open product of the intramolecular rearrangement was obtained.
二氢-2-甲基-4-苯基-1，5-苯并硫氮杂卓与重氮乙酸乙酯反应，得到非预期的分子内重排的开环产物。
From the reaction of 2,3 dihydro 2 methyl 4 phenyl 1,5 benzothiazepines with diazozcetic ester an unexpected ring open product of the intramolecular rearrangement was obtained.
二氢-2-甲基-4-苯基-1，5-苯并硫氮杂卓与重氮乙酸乙酯反应，得到非预期的分子内重排的开环产物。
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