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CC(C)(C)OC(=O)CN1CCCC1=O製品情報
tert-butyl 2-(2-oxopyrrolidin-1-yl)acetate (CAS 497250-66-5) product identity, structure identifiers and related reaction data for chemical intermediate research and sourcing review.
想定用途
専門的研究・工業用途限定
データベース ID 21923262
安全上の注意
For professional research and industrial use only. Review the supplier safety data sheet before handling.
合成データ
7 反応 · 7 文献
反応条件: temp:0.00; pressure:0.00; stir:
ソース ID: ord-fc6e37cc283649868b99c53b580f44ba反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.
実験手順: A mixture of 2-pyrrolidone (2.66 ml, 34 mmol) and NaH (60% in oil, 1.25 g, 31.3 mmol) in THF (75 ml) was stirred until gas evolution ceased (30 min). tert-Butyl 2-bromoacetate (4.45 ml, 30 mmol) was added and stirred at r.t. overnight then partitioned between water (200 ml) and ethyl acetate (200 ml) to give intermediate 2-(oxo-pyrrolidin-1-yl)-acetic acid tert-butyl ester (5.8 g). It was dissolved in acetic acid (40 ml) and cone. aq. HCl (6 ml) with gas evolution observed. After stirring at r.t. for 2 hours it was evaporated and recrystallized from toluene/ethanol to give 2.58 g of the title compound (60% yield). 1H NMR (500 MHz, DMSO-d6): 1.95 (quintet, J=7.7 Hz, 2H), 2.24 (t, J=8.1 Hz, 2H), 3.38 (m, overalapping with H2O (3.35 ppm), 2H), 3.91 (s, 2H), 12.77 (br., 1H). (30 min) stirred at r.t. overnight then partitioned between water (200 ml) and ethyl acetate (200 ml)
ソース ID: ord-0fe5a6ed44184497a589ba373ab50947反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.
実験手順: A mixture of 2-pyrrolidone (2.66 ml, 34 mmol) and NaH (60% in oil, 1.25 g, 31.3 mmol) in THF (75 ml) was stirred until gas evolution ceased (30 min). tert-Butyl 2-bromoacetate (4.45 ml, 30 mmol) was added and stirred at r.t. overnight then partitioned between water (200 ml) and ethyl acetate (200 ml) to give intermediate 2-(oxo-pyrrolidin-1-yl)-acetic acid tert-butyl ester (5.8 g). It was dissolved in acetic acid (40 ml) and cone. aq. HCl (6 ml) with gas evolution observed. After stirring at r.t. for 2 hours it was evaporated and recrystallized from toluene/ethanol to give 2.58 g of the title compound (60% yield). 1H NMR (500 MHz, DMSO-d6): 1.95 (quintet, J=7.7 Hz, 2H), 2.24 (t, J=8.1 Hz, 2H), 3.38 (m, overalapping with H2O (3.35 ppm), 2H), 3.91 (s, 2H), 12.77 (br., 1H). (30 min) stirred at r.t. overnight then partitioned between water (200 ml) and ethyl acetate (200 ml)
ソース ID: ord-0fe5a6ed44184497a589ba373ab50947反応条件: temp:0.00; pressure:0.00; stir:
ソース ID: ord-fc6e37cc283649868b99c53b580f44ba反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.
実験手順: A mixture of 2-pyrrolidone (2.66 ml, 34 mmol) and NaH (60% in oil, 1.25 g, 31.3 mmol) in THF (75 ml) was stirred until gas evolution ceased (30 min). tert-Butyl 2-bromoacetate (4.45 ml, 30 mmol) was added and stirred at r.t. overnight then partitioned between water (200 ml) and ethyl acetate (200 ml) to give intermediate 2-(oxo-pyrrolidin-1-yl)-acetic acid tert-butyl ester (5.8 g). It was dissolved in acetic acid (40 ml) and conc. aq. HCl (6 ml) with gas evolution observed. After stirring at r.t. for 2 hours it was evaporated and recrystallized from toluene/ethanol to give 2.58 g of the title compound (60% yield). 1H NMR (500 MHz, DMSO-d6): 1.95 (quintet, J=7.7 Hz, 2H), 2.24 (t, J=8.1 Hz, 2H), 3.38 (m, overalapping with H2O (3.35 ppm), 2H), 3.91 (s, 2H), 12.77 (br., 1H). (30 min) stirred at r.t. overnight then partitioned between water (200 ml) and ethyl acetate (200 ml)
ソース ID: ord-51bb06345399450f985b2b0d8307bf5f反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.
実験手順: A mixture of 2-pyrrolidone (2.66 ml, 34 mmol) and NaH (60% in oil, 1.25 g, 31.3 mmol) in THF (75 ml) was stirred until gas evolution ceased (30 min). tert-Butyl 2-bromoacetate (4.45 ml, 30 mmol) was added and stirred at r.t. overnight then partitioned between water (200 ml) and ethyl acetate (200 ml) to give intermediate 2-(oxo-pyrrolidin-1-yl)-acetic acid tert-butyl ester (5.8 g). It was dissolved in acetic acid (40 ml) and conc. aq. HCl (6 ml) with gas evolution observed. After stirring at r.t. for 2 hours it was evaporated and recrystallized from toluene/ethanol to give 2.58 g of the title compound (60% yield). 1H NMR (500 MHz, DMSO-d6): 1.95 (quintet, J=7.7 Hz, 2H), 2.24 (t, J=8.1 Hz, 2H), 3.38 (m, overalapping with H2O (3.35 ppm), 2H), 3.91 (s, 2H), 12.77 (br., 1H). (30 min) stirred at r.t. overnight then partitioned between water (200 ml) and ethyl acetate (200 ml)
ソース ID: ord-316449c454d34c98ab8938438a6bef93反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.
実験手順: A mixture of 2-pyrrolidone (2.66 ml, 34 mmol) and NaH (60% in oil, 1.25 g, 31.3 mmol) in THF (75 ml) was stirred until gas evolution ceased (30 min). tert-Butyl 2-bromoacetate (4.45 ml, 30 mmol) was added and stirred at r.t. overnight then partitioned between water (200 ml) and ethyl acetate (200 ml) to give intermediate 2-(oxo-pyrrolidin-1-yl)-acetic acid tert-butyl ester (5.8 g). It was dissolved in acetic acid (40 ml) and cone. aq. HCl (6 ml) with gas evolution observed. After stirring at r.t. for 2 hours it was evaporated and recrystallized from toluene/ethanol to give 2.58 g of the title compound (60% yield). 1H NMR (500 MHz, DMSO-d6): 1.95 (quintet, J=7.7 Hz, 2H), 2.24 (t, J=8.1 Hz, 2H), 3.38 (m, overalapping with H2O (3.35 ppm), 2H), 3.91 (s, 2H), 12.77 (br., 1H). (30 min) stirred at r.t. overnight then partitioned between water (200 ml) and ethyl acetate (200 ml)
ソース ID: ord-0fe5a6ed44184497a589ba373ab50947PubChem References
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