Corrigendum to "Iodine promoted cyclofunctionalization reaction of 2,4-dialkenyl-l,3-dicarbonyl compounds" [Tetrahedron Letters 38 (1997) 4977] t H61io A. Stefani"*, Nicola Petragnani b, Claud6te J. Valduga ', Carlos A. Brandt ¢* "Departamento de Farmticia, Faculdade de Ci~ncias Farmac~uticas, Universidade de Sao Paulo, Sao Paulo, SP - Brasil; hlnstituto de Qu[mica, Universidade de Sao Paulo, Sao Paulo, SP - Brasil; Clnstituto Butantan, Sao Paulo, SP - Brasil
Further X-ray evidence reveals that the correct structure of the bicyclic final product on page 4980, obtained by the addition of three equivalents of iodine to 2,4-dialkenyl- 1,3-dicarbonyl compounds, is as follows: