Cinnamic Acid → 4-tert-butyl-10,10-dimethyl-3,6-dioxo-2,7-dioxa-4-aza-10-silaundec-1-yl (2E)-3-phenylacrylate

関与物質

反応手順

Trans-cinnamic acid (23.1 mmol) and 1.0 M tetrabutylammonium hydroxide (22.2 mmol) in methanol are stirred for one hour, and the methanol is removed. THF is added. To this solution is added 2-(trimethylsilyl)ethyl 2-(tert-butyl((chloromethoxy)carbonyl)amino)-acetate (18.5 mmol) and the mixture is stirred at room temperature for 24 hr. The solvent is removed and the residue is diluted with ether. The resulting solution is washed with water and brine. The organic layer is dried over magnesium sulfate, filtered and concentrated under reduced pressure to yield 5.01 g (61%) MS (ESI) m/z 436.3.

情報源と証拠