Yadav, J. S. ; Subba Reddy, B. V. ; Chandra Sekhar, K. ; Geetha, V. (2001) Sc(OTf)3-catalyzed diastereoselective synthesis of 3,4-dihydro-4-amino-2H-1-benzopyrans Tetrahedron Letters, 42 (26). pp. 4405-4407. ISSN 0040-4039
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/S0040-4039(01)00736-5
Abstract
2,2-Dimethoxypropane reacts with a variety of o-hydroxybenzaldimines in the presence of a catalytic amount of scandium triflate at ambient temperature to afford a series of new compounds, 3,4-dihydro-4-amino-2-methoxy-2-methyl-2H-1-benzopyrans, in high yields, with good diastereoselectivity. BF3·OEt2 is also found to mediate this transformation under mild reaction conditions.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Scandium Triflate; Schiff's Base; 3,4-dihydro-4-amino-2H-1-benzopyrans |
| ID Code: | 59569 |
| Deposited On: | 07 Sep 2011 05:29 |
| Last Modified: | 07 Sep 2011 05:29 |
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