Abstract
Chloro nitrosyl (R,S)-(salen)ruthenium(II) complex served as a good catalyst for asymmetric hetero Diels-Alder (HDA) reaction of Danishefsky's diene with a wide variety of aldehydes. In contrast with this, (R,R)-(salen)-chromium(III) and -manganese(III) complexes well catalyze HDA reaction of simple aldehydes, while (R,S)-(salen)-chromium(III) and-manganese(III) complexes better catalyze HDA reaction of aldehydes bearing a precoordinating group. These features of metallosalen-catalyzed HDA reactions were rationalized by assuming that HDA reaction of aldehydes beating a precoordinating group would proceed through aldehyde-metallosalen complex which takes cis-β-structure.
Original language | English |
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Pages (from-to) | 395-404 |
Number of pages | 10 |
Journal | Heterocycles |
Volume | 54 |
Issue number | 1 |
Publication status | Published - Jan 1 2001 |
All Science Journal Classification (ASJC) codes
- Analytical Chemistry
- Pharmacology
- Organic Chemistry