Esterification with Diazoalkanes

Diazomethane, a yellow gas normally used as a solution in ether, readily esterifies fatty acids in the presence of methanol at room temperature and excess reagent can easily be removed by evaporation. However, the gas is highly carcinogenic and unstable, partially reacting with double bonds, carbonyl, phenolic and hydroxyl groups. This method, once popular, is now the exception. The same is true for the higher analogues diazoethane and phenyldiazo-methane (used to make benzyl esters). The recent use of commercially available trimethylsilyldiazomethane (solution in hexane) has proved to be useful in some applications.

Solar Panel Basics

Solar Panel Basics

Global warming is a huge problem which will significantly affect every country in the world. Many people all over the world are trying to do whatever they can to help combat the effects of global warming. One of the ways that people can fight global warming is to reduce their dependence on non-renewable energy sources like oil and petroleum based products.

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