Microwave advantages over conventional heating

Microwave heating, being specific and instantaneous, is unique and has found a place in chemical synthesis. Specifically, the solvent-free reactions are convenient to perform and have dear advantages over conventional heating procedures, as... 

Microwave heating has been reported to produce materials with particular physical and chemical properties [4], Stable solid structures are formed at low reaction temperatures with unusually high surface areas, making them very useful as catalysts or catalyst supports. Calcination of solid precursors in a microwave field has significant advantages over conventional heating. The effective synthesis of the catalysts and supporting adsorbents has been reported for the examples below. 

The use of microwave radiation provides an alternative heating source for acid digestion of solid samples. It has distinctive advantages over conventional heating systems (hot plate or muffle furnace), including ... 

In summery, microwave heating is unique and offers a number of advantages over conventional heating such as ... 

Microwave synthesis offers a large range of advantages over conventional synthesis. The consequences of the direct heating are the following reduction of energy consumption, better yield and gain in the reaction duration. From a practical viewpoint, the shorter reaction time enables a faster optimization of the synthesis parameters. 

There are major potential and real advantages using microwave energy for material processing over conventional heating. These include the following ... 

Microwave-promoted palladium-catalysed processes have found wide general application (see Chapter 2). A Larock-type heteroannulation of an iodoaniline and an internal alkyne has been employed in the synthesis of substituted indoles9 (Scheme 3.7). The microwave conditions were carefully optimised using a focused microwave reactor. Application of microwave heating provided clear advantages in reaction rate and yield over conventional thermal conditions. It is interesting to note that fixed microwave power input provided improved yields over constant temperature conditions (variable microwave power input). This chemistry was successfully extended to a solid-phase format (Rink amide resin)10. 

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