Magnesium trifluoromethanesulfonate → (S)-Methyl 3-((R)-1-(tert-butyldimethylsilyloxy)propan-2-yloxy)-2-hydroxypropanoate

関与物質

役割	名称	HCID	仕込み量
反応物	Magnesium trifluoromethanesulfonate	HCID 2734125	—
反応物	Methyl (2S)-2-oxiranecarboxylate	HCID 10942355	—
反応物	(2R)-1-{[(1,1-Dimethylethyl)(dimethyl)silyl]oxy}propan-2-ol	HCID 13175135	—
生成物	(S)-Methyl 3-((R)-1-(tert-butyldimethylsilyloxy)propan-2-yloxy)-2-hydroxypropanoate	HCID 59279501	39.8%

反応条件

温度	10 °C

反応手順

Magnesium trifluoromethanesulfonate (1.165 g, 3.61 mmol) was added in one portion to (S)-methyl oxirane-2-carboxylate (1.475 g, 14.45 mmol) and (R)-1-(tert-butyldimethylsilyloxy)propan-2-ol (CAS no. 136918-07-5) (2.75 g, 14.45 mmol) cooled to 10° C. The resulting suspension was stirred at 10° C. for 10 minutes and then warmed to 45° C. and stirred for 2 days. The crude product was purified by flash silica chromatography, eluting with 0 to 30% EtOAc in isohexane to afford the product (1.680 g, 39.8%). 1H NMR (400 MHz, DMSO) δ0.00 (s, 6H), 0.83 (s, 9H), 0.98 (d, 3H), 3.35-3.45 (m, 2H), 3.47-3.65 (m, 3H), 3.66 (s, 3H), 4.09-4.15 (m, 1H), 5.37 (d, 1H).

情報源と証拠

DOI	10.6084/m9.figshare.5104873.v1
特許番号	US08071608B2
出典データセット	uspto-grants-2011_12
ORD ID	ord-ed7b30eaba0a4c8090814c7200ef6b43
出典メモ	uspto-grants-2011_12