采用不同的方法对羧基进行保护，所得产物的稳定性会有所差别，本文详细介绍了羧基保护产物在不同条件下的稳定性，为羧基在不同条件下的保护反应提...

1 Introduction 2 Hydroxy protecting groups 2.1 Esters 2.2 Silyl ethers 2.3 Alkyl ethers 2.4 Alkoxyalkyl ethers 3 Thiol protecting groups 4 Diol protecting groups 5 Carboxy protecting groups 6 Phosphat...

一般植物的种子成熟以后，马上脱离母树，而且要经过一段时间的休眠，然后在适宜的温度、水分和空气的条件下，在土壤是萌发成幼小的植殊。但是有一...

胎生（胎萌）现象是红树植物的一种特殊繁殖方式。由于长期生长在海潮涨落及海水冲击的环境中，栖地为极度缺氧的高盐度沼泽区，红树植物的种子难以...

Rhodamine 123 ( pron.: / r o d m i n / ) is a chemical compound and a dye . It is often used as a tracer dye within water to determine the rate and direction of flow and transport. Rhodamine dyes fluo...

cLogP Calculation The logP value of a compound, which is the logarithm of its partition coefficient between n-octanol and water log(c octanol /c water ), is a well established measure of the compounds...

Browse synthetic transformations by the desired bond formation The graphical index, with various options and links to follow, should help in developing new ideas. Please try to searc h the site direct...

芳烃与酰基化试剂如酰卤、酸酐、羧酸、烯酮等在Lewis酸(通常用无水三氯化铝)催化下发生酰基化反应，得到芳香酮： 这是制备芳香酮类最重要的方法之一...