2-Substituted-1,3,2-dithioborolans as Chiral Lewis Acid Catalysts

doi:10.3390/50801011

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Molecules 2000, 5(8), 1011-1013; doi:10.3390/50801011

Article

2-Substituted-1,3,2-dithioborolans as Chiral Lewis Acid Catalysts

Joshua Howarth* and Paul Glynn

School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland

* Author to whom correspondence should be addressed.

Received: 29 June 2000 / Accepted: 10 August 2000 / Published: 15 August 2000

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Abstract: 1,3,2-Dithioborolans substituted at the 2-position with various homochiral groups can act as chiral Lewis acids in the Diels-Alder reaction between crotonaldehyde or methacrolein with cyclopentadiene. The endo:exo selectivities obtained were good although the enantiomeric excesses were low to moderate.

Keywords: boron heterocycle; Lewis acid; Diels-Alder

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MDPI and ACS Style

Howarth, J.; Glynn, P. 2-Substituted-1,3,2-dithioborolans as Chiral Lewis Acid Catalysts. Molecules 2000, 5, 1011-1013.

AMA Style

Howarth J, Glynn P. 2-Substituted-1,3,2-dithioborolans as Chiral Lewis Acid Catalysts. Molecules. 2000; 5(8):1011-1013.

Chicago/Turabian Style

Howarth, Joshua; Glynn, Paul. 2000. "2-Substituted-1,3,2-dithioborolans as Chiral Lewis Acid Catalysts." Molecules 5, no. 8: 1011-1013.

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