| Identification | Back Directory | [Name]
(S)-3,3-DiMethyltetrahydropyrrolo[1,2-c]oxazol-5(3H)-one | [CAS]
99208-71-6 | [Synonyms]
EOS-61025 (S)-3,3-Dimethyltetrahydropyrrolo[1,2-c]oxazol-5(1H)-one (S)-3,3-DiMethyltetrahydropyrrolo[1,2-c]oxazol-5(3H)-one (5S)-1-aza-2,2-dimethyl-3-oxa-8-oxo-bicyclo[3.3.0]octane (S)-3,3-dimethyltetrahydro-3H,5H-pyrrolo[1,2-c]oxazol-5-one (7aS)-3,3-dimethyl-hexahydropyrrolo[1,2-c][1,3]oxazol-5-one 3H,5H-Pyrrolo[1,2-c]oxazol-5-one, tetrahydro-3,3-dimethyl-, (7aS)- (7aS)-3,3-dimethyl-1,6,7,7a-tetrahydropyrrolo[1,2-c][1,3]oxazol-5-one | [Molecular Formula]
C8H13NO2 | [MDL Number]
MFCD26940310 | [MOL File]
99208-71-6.mol | [Molecular Weight]
155.194 |
| Chemical Properties | Back Directory | [Boiling point ]
262.2±19.0 °C(Predicted) | [density ]
1.15±0.1 g/cm3(Predicted) | [storage temp. ]
Sealed in dry,2-8°C | [pka]
-0.70±0.40(Predicted) | [Appearance]
white solid | [CAS DataBase Reference]
99208-71-6 |
| Hazard Information | Back Directory | [Synthesis]
To a 500 ml solution of toluene containing 23.12 g of (S)-(+)-5-hydroxymethyl-2-pyrrolidinone and 0.18 g of p-toluenesulfonic acid, 70 ml of 2,2-dimethoxypropane was slowly added at room temperature. The reaction mixture was heated to reflux with continuous stirring for 2 hours. Subsequently, the volatile components were removed by distillation at a temperature range of 65°C to 92°C. To the residue, 70 ml of 2,2-dimethoxypropane was added again and the mixture was heated to reflux for 2 hours. After completion of the reaction, the reaction mixture was cooled and concentrated to afford the crude product (S)-3,3-dimethyltetrahydropyrrolo[1,2-c]oxazol-5-(3H)-one. The final yield was 29.82 g in 96% of the theoretical value. | [References]
[1] Patent: US2013/23502, 2013, A1. Location in patent: Paragraph 0322-0324 [2] Tetrahedron Asymmetry, 2002, vol. 13, # 6, p. 647 - 658 [3] Journal of Organic Chemistry, 2001, vol. 66, # 26, p. 8831 - 8842 [4] Organic letters, 1999, vol. 1, # 13, p. 2105 - 2107 [5] Bioorganic and Medicinal Chemistry, 2012, vol. 20, # 23, p. 6885 - 6893 |
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