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CAS No. : | 63126-47-6 | MDL No. : | MFCD00010408 |
Formula : | C6H13NO | Boiling Point : | - |
Linear Structure Formula : | C4H8N(CH2OCH3) | InChI Key : | CHPRFKYDQRKRRK-LURJTMIESA-N |
M.W : | 115.17 | Pubchem ID : | 671217 |
Synonyms : |
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Signal Word: | Danger | Class: | 3 |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | 1993 |
Hazard Statements: | H225-H315-H319-H335 | Packing Group: | Ⅲ |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
93% | With N-ethyl-N,N-diisopropylamine; In tetrahydrofuran; chloroform; at 0℃; for 1.5h; | Step 2: 5-[(2S)-2-(Methoxymethyl)pyrrolidin-1-yl]sulfonyl}-1H-indole-2,3-dione To a cold suspension of <strong>[132898-96-5]2,3-dioxo-2,3-dihydro-1H-indole-5-sulfonylchloride</strong> (5.28 g, 21.5 mmol) in a 1:1 mixture of THF:CHCl3 (254 mL) was added drop-wise via syringe pump a solution of (S)-(+)-2-(methoxymethyl)-pyrrolidine (3.45 mL, 28.0 mmol, 1.3 eq) (Aldrich) and N,N-diisopropylethylamine (7.49 mL, 43 mmol, 2 eq) in CHCl3 (42 mL) over a period of 70 minutes under a dry N2 atmosphere with cooling in an ice bath. After stirring an additional 20 minutes the mixture was concentrated. The residue was flash chromatographed (Biotage KP silica gel, 98/2 CH2Cl2/CH3OH) to give the title compound as a dark greenish-yellow foam (6.48 g. 93% yield). NMR (400 MHz, DMSO-d6): consistent MS: (API-ES-) m/z 323[M-H]. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
63.8% | With N-ethyl-N,N-diisopropylamine; In tetrahydrofuran; chloroform; at 0℃; for 2.5h; | Step 1: 5-[(2R)-2-(Methoxymethyl)pyrrolidin-1-yl]sulfonyl}-1H-indole-2,3-dione To a stirred cold suspension of 2,3-dioxo-2,3-dihydro-1H-indol-5-sulfonyl chloride (5.00 g, 20.4 mmol) in a 1:1 mixture of THF: CHCl3 (140 mL) was added dropwise, via syringe pump, a solution of N,N-diisopropylethylamine (7.11 mL, 40.8 mmol, 2 eq) and (R)-2-(Methoxymethyl)pyrrolidine (3.27 mL, 26.5 mmol, 1.3 eq) in CHCl3 (60 mL) over a period of 1.5 hours with cooling in an ice bath. After stirring an additional 1 h, the reaction was concentrated. The crude product was purified on Biotage KP silica gel eluding with 95/5 CH2Cl2/CH3OH followed by a second chromatography on silica gel eluding with EtOAc to give 4.21 g (63.8%) of the title compound. NMR (400 MHz, DMSO-d6): consistent. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
81% | With toluene-4-sulfonic acid; In toluene; at 130℃;Heating / reflux; | Example 14: Synthesis of 4-(2(S)-Methoxymethyl-pyrrolidin-1-yl)-3-methyl-5H-furan-2-one.; [Show Image] p-Toluenesulphonic acid monohydrate (15.00 mg, 0.08 mmol) and then (S)-2-methoxymethyl)pyrrolidine (100.00 mg, 0.87 mmol) were added into a mixture of <strong>[516-09-6]4-hydroxy-3-methyl-5H-furan-2-one</strong> (90.00 mg, 0.80 mmol) in dry toluene (5 ml). The reaction mixture was stirred wildly at reflux temperature (130C) and it became a brown transparent solution. Stirring was kept at 130C overnight. The solvent was evaporated in vacuo and the residue was purified by radial chromatography using AcOEt/MeOH (from 100/0 to 100/10 in a 2% polarity increment) to yield 136.70 mg (81%) of 4-(2(S)-Methoxymethyl-pyrrolidin-1-yl)-3-methyl-5H-furan-2-one as a yellow oil. 1H-RMN (400 MHz, CDCl3): 4.89 (d, 1 H, J=15 Hz, 5-CH2 furanone); 4.53 (d, 1 H, J=15 Hz, 5-CH2 furanone); 3.97 (m, 1 H, 2-CH pyrrolidinyl); 3.57 (m, 1 H, 5-CH2 pyrrolodinyl); 3.42 (m, 1 H, 5-CH2 pyrrolodinyl); 3.32 (m and s, 4H, 2-CH2-OMe pyrrolidinyl and O-CH3 pyrrolodinyl); 3.25 (m, 1 H, 2-CH2-OMe pyrrolidinyl); 2.01-1.93 (m, 4H, 3-CH2 pyrrolodinyl, 4-CH2 pyrrolodinyl) 1.92 (s, 3H, CH3 furanone). 13C-RMN (100 MHz, CDCl3): 177.17 (2-CO furanone); 160.31 (4-C=N furanone); 88.70 (3-C(Me)= furanone); 74.47 (2-CH2-Ome, pyrrolidinyl); 66.64 (5-CH2 furanone); 59.29 (O-CH3 pyrrolidinyl); 58.77 (2-CH pyirrolidinyl); 48.66 (5-CH2 pyrrolidinyl); 28.01 (3-CH2 pyrrolidinyl); 22.92 (4-CH2, pyrrolidinyl); 8.98 (3-CH3 furanone). |
A159662[ 84025-81-0 ]
(R)-2-(Methoxymethyl)pyrrolidine
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(S)-2-(Methoxymethyl)pyrrolidine hydrochloride
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