• Publications
  • Influence
Isopropyl-beta-D-thiogalactoside preparation technology
The invention relates to the field of sugar compounds, and concretely relates to an isopropyl-beta-D-thiogalactoside preparation technology. The technology comprises the following steps: addingExpand
一种异丙基-β-D-硫代半乳糖苷的制备工艺
本发明涉及糖化合物领域,具体涉及一种异丙基-β-D-硫代半乳糖苷的制备工艺。室温加入醋酐和催化剂,加入半乳糖,反应完成后,加入异丙硫醇,反应完成后经过后处理得到异丙基硫代乙酰半乳糖。将异丙基硫代乙酰半乳糖加到甲醇中溶解,加入甲醇钠,反应完成后加入醋酸中和,经过后处理得到异丙基-β-D-硫代半乳糖苷。本发明方法通过两步反应法合成异丙基-β-D-硫代半乳糖苷,操作简单,原料易得,节约了操作成本和物料。
Preparation of 2,3,4,6-tetra - O - benzyl-galactopyranosyl method -d-
本发明涉及糖化合物领域,具体涉及一种制备2,3,4,6-四-氧-苄基-D-吡喃半乳糖的方法。 半乳糖在醋酐和催化剂,2-巯基苯并噻唑作用下制备苯并噻唑基硫代乙酰半乳糖。 苯并噻唑基硫代乙酰半乳糖在氢氧化钾和氯化苄作用下制备得到苯并噻唑基硫代四苄基半乳糖。 苯并噻唑基硫代四苄基半乳糖在N-溴代丁二酰亚胺作用下制备2,3,4,6-四-氧-苄基-D-吡喃半乳糖。Expand
A method isopropyl -β-D- thiogalactoside Preparation
The present invention relates to the field of saccharide compound, particularly relates to a process for the preparation of isopropyl -β-D- thiogalactopyranoside of. At room temperature was addedExpand
Preparation method of orthocresol
The invention provides a preparation method of orthocresol, which comprises the steps of mixing ortho-chlorotoluene, an alkaline compound, water and a catalyst for reaction to obtain orthocresol,Expand
Preparation method of 6-chloro-1,3-dimethyluracil
The invention provides a preparation method of 6-chloro-1,3-dimethyluracil, which comprises the following steps: carry out reflux reaction on 1,3-dimethylbarbituric acid and a chlorinating agent in aExpand
Method for preparing alkali lignin by using corncob residues
The invention provides a method for preparing alkali lignin by using corncob residues. A prepared alkali lignin solution or alkali lignin solid can be used as a chemical raw material to substitute aExpand
Method for preparing isopropyl-beta-D-isopropylthiogalactoside
The invention relates to the field of sugar compounds and in particular relates to a method for preparing isopropyl-beta-D-isopropylthiogalactoside. The method comprises the following steps: addingExpand
Isopropyl-beta-D-thiogalactoside preparation method
The invention relates to the field of sugar compounds, and concretely relates to an isopropyl-beta-D-thiogalactoside preparation method. The method comprises the following steps: adding aceticExpand
The preparation technology of isopropyl-β-D-thiogalactoside
The present invention relates to sugar compounds field, be specifically related to the preparation technology of a kind of isopropyl ss D thiogalactoside.Room temperature adds acetic anhydride andExpand
...
1
2
...