Corrigendum to “Dipolar cycloaddition of carbonyl ylides to para-quinoneimides: a facile route to bicyclo[3.2.1] and [2.2.1] systems”: [Tetrahedron Letters 42 (2001) 2045–2046]

The authors regret that an error occurred in the assignment of the stereochemistry for the products 3a and 5(a–c) in Figure 1 and Schemes 1 and 3. The correct assignments are shown below.