Vinylcyclopentane → (3R,4R,5S)-5-[(1R,2E)-3-cyclopentyl-1-hydroxyprop-2-en-1-yl]-4-hydroxy-3-methoxydihydrofuran-2(3H)-one

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

100 mg (0.53 mmol) of 18, 4 ml of CH2Cl2, 726 μl (5.3 mmol) of vinylcyclopentane and then 90.2 mg (106 μmol) of second-generation Grubbs catalyst are introduced into a 5 ml vial. The solution is microwave-heated at 60° C. for 10 min. The solvent is subsequently evaporated to dryness under reduced pressure and the residue is then purified on a Biotage 12-M silica column (eluent: 40/60 Hept/EtOAc). The product 19 (76.3 mg, Rf=0.35 under the elution conditions used) is obtained in the form of a brown solid.

Herkunft & Nachweise