Nitrones and oximes of bifunctional carbonyl compounds and their reaction products with diarylborinic acids. Crystal and molecular structure of examples of five-, six-, and seven-membered boron chelates
Total Synthesis of the Natural Herbicide MBH‐001 and Analogues
作者:Birgit Kuhn、David M. Barber、Hansjörg Dietrich、Uwe Döller、Michael G. Hoffmann、Dirk Schmutzler、Stefan Schnatterer、Martin E. Maier、Tamer Kocakaya、Marius Morkunas
DOI:10.1002/ejoc.202000294
日期:2020.4.23
Cyclic nitrones are the key: A flexible route to the natural herbicide MBH‐001 was developed. As opposed to azlactones, the use of the corresponding nitrones secured the regiochemistry (2 vs. 4‐position) in the aldol type reaction of the anions with aldehydes. The work also led to the determination of the relative and absolute stereochemistry of MBH‐001.