{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,28]],"date-time":"2026-09-28T16:08:25Z","timestamp":1790611705348,"version":"4.1.0"},"reference-count":97,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2019,5,2]],"date-time":"2019-05-02T00:00:00Z","timestamp":1556755200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Molecules"],"abstract":"<jats:p>Salen ligands are a class of Schiff bases simply obtained through condensation of two molecules of a hydroxyl-substituted aryl aldehyde with an achiral or chiral diamine. The prototype salen, or N,N\u2032-bis(salicylidene)ethylenediamine has a long history, as it was first reported in 1889, and immediately, some of its metal complexes were also described. Now, the salen ligands are a class of N,N,O,O tetradentate Schiff bases capable of coordinating many metal ions. The geometry and the stereogenic group inserted in the diamine backbone or aryl aldehyde backbone have been utilized in the past to efficiently transmit chiral information in a variety of different reactions. In this review we will summarize the important and recent achievements obtained in stereocontrolled reactions in which Al(salen) metal complexes are employed. Several other reviews devoted to the general applications and synthesis of chromium and other metal salens have already been published.<\/jats:p>","DOI":"10.3390\/molecules24091716","type":"journal-article","created":{"date-parts":[[2019,5,7]],"date-time":"2019-05-07T03:15:46Z","timestamp":1557198946000},"page":"1716","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":56,"title":["Al(Salen) Metal Complexes in Stereoselective Catalysis"],"prefix":"10.3390","volume":"24","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2403-4216","authenticated-orcid":false,"given":"Andrea","family":"Gualandi","sequence":"first","affiliation":[{"name":"ALMA MATER STUDIORUM Universit\u00e0 di Bologna, Dipartimento di Chimica \u201cG. Ciamician\u201d, Via Selmi 2, 40126 Bologna, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Francesco","family":"Calogero","sequence":"additional","affiliation":[{"name":"ALMA MATER STUDIORUM Universit\u00e0 di Bologna, Dipartimento di Chimica \u201cG. Ciamician\u201d, Via Selmi 2, 40126 Bologna, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6300-3124","authenticated-orcid":false,"given":"Simone","family":"Potenti","sequence":"additional","affiliation":[{"name":"ALMA MATER STUDIORUM Universit\u00e0 di Bologna, Dipartimento di Chimica \u201cG. Ciamician\u201d, Via Selmi 2, 40126 Bologna, Italy"},{"name":"Scuola Normale Superiore, Piazza dei Cavalieri 7, 56126 Pisa, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pier Giorgio","family":"Cozzi","sequence":"additional","affiliation":[{"name":"ALMA MATER STUDIORUM Universit\u00e0 di Bologna, Dipartimento di Chimica \u201cG. Ciamician\u201d, Via Selmi 2, 40126 Bologna, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2019,5,2]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"66","DOI":"10.2174\/157019311793979927","article-title":"The Application of Chiral Schiff Base in Asymmetric Catalysis","volume":"8","author":"Wei","year":"2011","journal-title":"Mini-Rev. Org. Chem."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"85","DOI":"10.1039\/a806483k","article-title":"Utilisation of Homogeneous and Supported Chiral Metal(salen) Complexes in Asymmetric Catalysis","volume":"28","author":"Canali","year":"1999","journal-title":"Chem. Soc. 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