Sulfamic Acid: An Efficient Catalyst for the Diastereoselective, One-Pot Synthesis of Pyrano Benzopyrans, Furano Benzopyrans and Ethoxy Benzopyrans

Authors: Kumar, R. S.; Nagarajan, R.; Vijay, K.; Perumal, P. T.

Source: Letters in Organic Chemistry, Volume 2, Number 5, August 2005 , pp. 458-460(3)

Publisher: Bentham Science Publishers

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Abstract:

Sulfamic acid catalyses the one-pot three components coupling of aldehydes, anilines and electron rich dienophiles such as dihydropyran, dihydrofuran and ethyl vinylether resulting in the formation of pyrano, furano and ethoxy benzopyrans.

Keywords: sulfamic acid; three- component coupling; diastereoselective; pyranobenzopyran; furanobenzopyran

Document Type: Review article

DOI: http://dx.doi.org/10.2174/1570178054405841

Affiliations: 1: Organic Chemistry Division Central Leather Research Institute, Adyar, Chennai - 600 020, India.

Publication date: 2005-08-01

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