Abstract
A chiral titanium complex 1a derived from 6,6'-dibromo-1,1'-bi-2-naphthol is found to give higher endo- and enantioselectivity along with higher catalytic activity than the parent binaphthol-derived titanium complex 1b in the (hetero) Diels-Alder reactions of 1-methoxydienes (2a and 2c) with methacrolein and glyoxylate but not with bromoacrolein.
Original language | English |
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Pages (from-to) | 967-968 |
Number of pages | 2 |
Journal | Synlett |
Volume | 1995 |
Issue number | 9 |
DOIs | |
Publication status | Published - 1995 Sept |
Keywords
- (hetero) Diels-Alder reaction
- asymmetric catalysis
- binaphthol
- enantioselectivity
- Lewis acid
- titanium complex