Porphyrins in Diels-Alder and 1,3-dipolar cycloaddition reactions

Porphyrins in Diels-Alder and 1,3-dipolar cycloaddition reactions 

Department of Chemistry, University ofAveiro, 3810-193 Aveiro, Portugal E-mail jcavaleiro dq.ua.pt 

Diels Alder (DA) and 1,3-dipolar cycloaddition (1,3-DC) reactions are simple and very versatile transformations to introduce a wide range of substituents at the meso- and beta-pyrrolic positions of porphyrins, thus leading to promising derivatives obtained in many cases in one-pot transformations. 

The use of beta-vinylporphyrins as dienes in DA reactions has been known for decades and has been recently reviewed 03A107 . This review will focus only on the use of porphyrins as dienophiles in DA reactions as well as on the use of porphyrins and porphyrinic derivatives in 1,3-DC reactions. 

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