10. Patented Literature 2616 10.1. Esterification 2616 10.2. Ether Formation 2619 10.2.1. Etherification without Cyclization 2619 10.2.2. Etherification with Cyclization 2624 10.3. N-Alkylation 2625 10.4. Other Reactions 2627 11. Summary and Outlook 2628 12. Note Added in Proof 2628 13. Abbreviations Used in This Review 2629 14. Acknowledgments 2629 15. Supporting Information Available 2630 16. References 2630

Mitsunobu and Related Reactions: Advances and Applications

Tetrahedron report number 213

Catalysed esterifications in room temperature ionic liquids with acidic counteranion as recyclable reaction media

A Brønsted acidic ionic liquid as an efficient and reusable catalyst system for esterification

Novel Bronsted acidic ionic liquid as efficient and reusable catalyst system for esterification

A Mild and Efficient Alumina-Promoted Synthesis of t-Butyl Esters

Esterification of a variety of acid bromides having even steric bulkiness with t-BuOH/activated basic alumina gave the corresponding t-butyl esters in good to excellent yields. In the case of chiral acid bromides, no racemization has been ascertained for the first time.

Activated basic alumina promotes a mild, clean and high-yield racemization-free synthesis of t-butyl esters from chiral acid bromides and t-butyl alcohol

A Cerium Metal-Mediated Coumarin Synthesis

The photoreactions of 4-azidocoumarins (1) and 3-azidocoumarin (2) in the presence of nucleophiles such as alcohols, thiol or amines generally gave 4-substituted 3-amino- and/or 3-substituted 4-aminocoumarins, while pyrone ring fission with incorporation of two moles of nucleophile was observed in the reaction of 1 in the presence of primary or secondary aliphatic amine as a nucleophile. Plausible mechanisms for these reactions are suggested

Keiichi Ito

Papers

A Mild and Efficient Alumina-Promoted Synthesis of t-Butyl Esters

Activated basic alumina promotes a mild, clean and high-yield racemization-free synthesis of t-butyl esters from chiral acid bromides and t-butyl alcohol

A Cerium Metal-Mediated Coumarin Synthesis

Photoreactions of 4- and 3-Azidocoumarins in the Presence of Nucleophiles

A novel and efficient synthesis of 5-substituted and 5,6-disubstituted 4-methylcoumarins using organocerium(III) reagents☆