2-Diazonio-1,3-dimethoxy-3-oxoprop-1-en-1-olate → HCID 59692641, compound

Participants

Reaction Conditions

Reaction Steps

To a mixture of t-butyldiphenyl-(3-phenyl-3-butenyloxy)-silane (3.0 g, 7.0 mmol) and dimethyl diazomalonate (1.1 g, 7.0 mmol), which was synthesized by the method described in Synth. Commun. (1987, 17, 1709-1716), was added rhodium (II) acetate dimmer (62 mg, 0.14 mmol) under argon atmosphere, and the mixture was heated at 100° C. for 10 min. After cooling to room temperature, the mixture was diluted with chloroform (4 mL), separated and purified by silica gel chromatography (hexane:ethyl acetate=100:0 to 4:1) to give the title compound (2.5 g, yield 70%) as a colorless oil.

Provenance & Evidence