Tetrahydro-4<i>H</i>-pyran-4-one: From the Laboratory Scale to Pilot Plant Manufacture
作者:Sara Zahim、Kenny Delacroix、Agathe Carlier、Thierry Berranger、Julie Bergraser、Pierre-Georges Echeverria、Laurent Petit
DOI:10.1021/acs.oprd.1c00403
日期:2022.1.21
This study describes our recent efforts to find an efficient and scalable route to tetrahydro-4H-pyran-4-one using the commercially available starting materials. The route scouting work and the full development of an efficient access to the target are described. This work culminated in the preparation of above 20 kg of the title compound in our pilot plant facility.
Chemistry of Ketoacetals: II. β,β′-Ketodiacetal and β,β′-Hydroxydiacetals in Reactions with Amminia and Amines
作者:O.V. Kharitonova、D.N. Panin、O.N. Belova
DOI:10.1007/s11178-005-0303-y
日期:2005.8
β,β′-Ketodiacetal and β,β′-hydroxydiacetals react with ammonium acetate in acetic acid to afford substituted pyridine, and with aromatic amines in the presence of hydrochloric acid form substituted pentamethine salts.