Singlet-Oxygen-Mediated One-Pot Synthesis of 3-Keto-tetrahydrofurans from 2-(β-Hydroxyalkyl) Furans
摘要:
Photooxygenation of 2-(beta-hydroxyalkyl) furans affords, in one synthetic operation and in high yields, 3-keto-tetrhydrofuran motifs via intramolecular Michael-type addition to the 1,4-enedione intermediate.
Gold Catalysis: Biarylphosphine Ligands as Key for the Synthesis of Dihydroisocoumarins
作者:A. Stephen K. Hashmi、Benjamin Bechem、Annette Loos、Melissa Hamzic、Frank Rominger、Hassan Rabaa
DOI:10.1071/ch13552
日期:——
A gold-catalyzed phenol synthesis was successfully used in the synthesis of dihydroisocoumarins for the first time. A large number of gold(i) complexes were prepared and tested; only complexes based on the biarylphosphine motif were successful.