반응식
[CH3:1][Si:2]([CH3:7])([CH3:6])[C:3]#[C:4][CH3:5].CN(C)C(N(C)C)C.C([Li])(C)(C)C.CCCCC.[Si:26]([O:33][C@H:34]([CH2:43][O:44][Si:45]([C:48]([CH3:51])([CH3:50])[CH3:49])([CH3:47])[CH3:46])/[CH:35]=[N:36]/[S@:37]([C:39]([CH3:42])([CH3:41])[CH3:40])=[O:38])([C:29]([CH3:32])([CH3:31])[CH3:30])([CH3:28])[CH3:27]>C(OCC)C.C1COCC1>[Si:45]([O:44][CH2:43][C@@H:34]([O:33][Si:26]([C:29]([CH3:32])([CH3:31])[CH3:30])([CH3:27])[CH3:28])[C@@H:35]([NH:36][S@:37]([C:39]([CH3:40])([CH3:41])[CH3:42])=[O:38])[CH2:5][C:4]#[C:3][Si:2]([CH3:7])([CH3:6])[CH3:1])([C:48]([CH3:51])([CH3:50])[CH3:49])([CH3:47])[CH3:46]참가 물질
반응물 5
생성물 1
시약·촉매·용매 2
반응 조건
- 온도
- -78 °C
실험 절차
Trimethyl(prop-1-ynyl)silane (4 mL, 28 mmol) and N,N,N′,N′-tetramethylethanediamine (5 mL, 36 mmol) were dissolved in dry diethyl ether (50 mL) and cooled to −78° C. Tert-butyllithium, 1.7 M solution in pentane (17 mL, 28 mmol) was added dropwise and the heterogenous solution was allowed to warm to 0° C. for 15 min to give a clear yellow solution, which was recooled to −78 C. Azeotropically (S,E)-N—((S)-2,3-bis(tert-butyldimethylsilyloxy)propylidene)-2-methylpropane-2-sulfinamide (3.0 g, 7 mmol) in dry THF (20 mL) was added dropwise and the solution was stirred for 1 h until the starting material was consumed. The reaction mixture as quenched with NH4Cl and extracted with EtOAc. The combined organics were washed with water, brine, dried over Na2SO4, filtered, and concentrated to afford a yellow oil as (S)—N-((2S,3S)-1,2-bis(tert-butyldimethylsilyloxy)-6-(trimethylsilyl)hex-5-yn-3-yl)-2-methylpropane-2-sulfinamide.
후처리
- temperatureto warm to 0° C. for 15 min
- customto give a clear yellow solution, which
- customwas consumed
- customThe reaction mixture as quenched with NH4Cl
- extractionextracted with EtOAc
- washThe combined organics were washed with water, brine
- dry with materialdried over Na2SO4
- filtrationfiltered
- concentrationconcentrated
출처 및 근거
- ORD 기록
- ord-9362f4e4f81c41a1b262d3a38a89967f
- 출처 데이터셋
- uspto-grants-2014_01
- 특허 번호
- US08633315B2
연결된 노트
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