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Most Requested Journal Articles 2Q05-Chemistry and Related

Following is one of the journal articles most requested by researchers using CAS online services.

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CAS subject entries for this document include: Arylation catalysts; Dehydration reaction; Coupling reaction; and 18 additional concepts.

CAPLUS COPYRIGHT 2005 ACS on STN

TITLE:	Synthetic methods. Controlled microwave heating in modern organic synthesis
AUTHOR(S):	Kappe, C. Oliver
CORPORATE SOURCE:	Institute of Chemistry, Organic and Bioorganic Chemistry, Karl-Franzens University Graz, Graz, A-8010, Austria
SOURCE:	Angewandte Chemie, International Edition (2004), 43(46), 6250-6284 CODEN: ACIEF5; ISSN: 1433-7851
PUBLISHER:	Wiley-VCH Verlag GmbH & Co. KGaA
LANGUAGE:	English

ABSTRACT:
A review. Although fire is now rarely used in synthetic chem., it was not until Robert Bunsen invented the burner in 1855 that the energy from this heat source could be applied to a reaction vessel in a focused manner. The Bunsen burner was later superseded by the isomantle, oil bath, or hot plate as a source for applying heat to a chem. reaction. In the past few years, heating and driving chem. reactions by microwave energy was an increasingly popular theme in the scientific community. This nonclassical heating technique that is heavily used in both academia and industry. The efficiency of "microwave flash heating" in dramatically reducing reaction times (from days and hours to minutes and seconds) is just on of the many advantages. This Review highlights recent applications of controlled microwave heating in modern org. synthesis, and discusses some of the underlying phenomena and issues involved.