152873-62-6Relevant articles and documents
Synthesis, structure and catalytic activity of an air-stable titanium triflate, supported by an amine tris(phenolate) ligand
Bull, Steven D.,Davidson, Matthew G.,Johnson, Andrew L.,Robinson, Diane E. J. E.,Mahon, Mary F.
, p. 1750 - 1751 (2003)
An air- and moisture-stable titanium(IV) triflate, 3, supported by a C3-symmetric amine tris(phenolate) ligand has been synthesised, characterised by X-ray crystallography and demonstrated to be an excellent catalyst for formal aza-Diels-Alder reactions.
Regio- and stereoselective intramolecular Heck reactions of N-acyl-2,3-dihydro-4-pyridones
Comins, Daniel L.,Joseph, Sajan P.,Zhang, Yue-Mei
, p. 793 - 796 (1996)
Intramolecular Heck reactions of N-acyl-2,3-dihydro-4-pyridones provide polycyclic heterocycles with high regio- and stereoselectivity.
Scandium(III)-zeolites as new heterogeneous catalysts for imino-diels-alder reactions
Olmos, Andrea,Louis, Benoit,Pale, Patrick
supporting information; experimental part, p. 4894 - 4901 (2012/06/04)
This study demonstrates the first zeolite-catalyzed synthesis of piperidine derivatives, including peptidomimetics and indoloquinolizidine alkaloids. The approach developed utilizes a highly effective one-pot reaction cascade, through imine formation and
Rapid synthesis of carbohydrate derivatives, including mimetics of C-linked disaccharides and C-linked aza disaccharides, using the hetero-Diels-Alder reaction
Burland, Peter A.,Coisson, David,Osborn, Helen M. I.
supporting information; experimental part, p. 7210 - 7218 (2011/02/22)
In this work we demonstrate the value of performing a hetero-Diels-Alder reaction (HDAR) between Danishefsky's diene and a range of aldehydes or imines, under microwave irradiation. By using a range of aldehydes and imines, including those derived from carbohydrates, access to functionalized 2,3-dihydro-4H- pyran-4-ones or 2,3-dihydro-4-pyridinones in good to excellent synthetic yields is possible. A particular strength of the methodology is its ability to access mimetics of C-linked disaccharides and C-linked aza disaccharides, targets of current therapeutic interest, in a rapid, convenient, and diastereoselective manner. The effect of high pressure on the HDARs involving carbohydrate-derived aldehydes and imines is also explored, with enhancement in yields occurring for the aldehyde substrates. Finally, HDARs using carbohydrate derived ketones, enones, and enals are described under a range of conditions. Optimum results were obtained under high-pressure conditions, with highly functionalized carbohydrate derivatives being afforded, in good yields, in this way.