Allyl Alcohol → HCID 58431049, 화합물

To a solution of 1-(pyrazin-2-yl)cyclopropanecarboxylic acid (0.18 g, 1.09 mmol, 1 eq) in dry toluene (5 ml) was added TEA (0.18 ml, 1.3 mmol, 1.2 eq) followed by diphenylphosphoryl azide (0.25 ml, 1.18 mmol, 1.08 eq). The reaction was stirred for 1 h at r.t. Allyl alcohol (0.36 ml, 5.30 mmol, 4.9 eq) was added via syringe and the reaction was heated to 90° C. for 3 h. After cooling to room temperature, the reaction mixture was diluted with water (10 ml) and ethyl acetate (10 ml). The layers were separated and the water layer was extracted with ethyl acetate (2×10 ml). The combined organic layers were dried over Na2SO4 and concentrated to give a black residue that was purified by silica column chromatography using 20-30% ethyl acetate in hexane. Yield: 0.12 g (50%). 1H NMR (400 MHz, CD3OD): δ 1.31-1.38 (m, 2H), 1.60-1.63 (m, 2H), 4.60-4.61 (d, J=5.2 Hz, 2H), 5.23-5.26 (d, J=10.4 Hz, 1H), 5.35-5.39 (d, J=17.2 Hz, 1H,), 5.96-6.03 (m, 1H), 8.36-8.36 (d, J=2.4 Hz, 1H), 8.49-8.508 (q, 1H), 8.63 (s, 1H). LCMS: (ES+) m/z=220.2 (M+H)+

1. temperaturethe reaction was heated to 90° C. for 3 h
2. temperatureAfter cooling to room temperature
3. customThe layers were separated
4. extractionthe water layer was extracted with ethyl acetate (2×10 ml)
5. dry with materialThe combined organic layers were dried over Na2SO4
6. concentrationconcentrated
7. customto give a black residue that
8. customwas purified by silica column chromatography

ORD 기록

ord-43fdb55a4cf144eba9073737dc52923b

출처 데이터셋

uspto-grants-2012_04

DOI

10.6084/m9.figshare.5104873.v1

특허 번호

US08148382B2