Hydrochloric Acid → 3-Cyclopropylmethoxy-3-o-tolylazetidine hydrochloride
Reaction equation
[CH:1]1([CH2:4][O:5][C:6]2([C:17]3[CH:22]=[CH:21][CH:20]=[CH:19][C:18]=3[CH3:23])[CH2:9][N:8](C(OC(C)(C)C)=O)[CH2:7]2)[CH2:3][CH2:2]1.[ClH:24]>C(OCC)(=O)C>[ClH:24].[CH:1]1([CH2:4][O:5][C:6]2([C:17]3[CH:22]=[CH:21][CH:20]=[CH:19][C:18]=3[CH3:23])[CH2:7][NH:8][CH2:9]2)[CH2:2][CH2:3]1Participants
4
Procedure
2.8 g (9.0 mmol) of tert-butyl 3-cyclopropylmethoxy-3-o-tolylazetidine-1-carboxylate are placed in 40 ml of a 3M solution of hydrogen chloride in ethyl acetate and are stirred at room temperature for 1 hour 30 minutes. The reaction medium is concentrated under a stream of nitrogen and then taken up in a 50/50 heptane/ethyl acetate mixture and concentrated under vacuum. 2.2 g (96%) of 3-cyclopropylmethoxy-3-o-tolylazetidine hydrochloride are obtained in the form of a beige-coloured solid.