Ammonia → HCID 53915086, compound
Reaction equation
[CH:1]1(/[CH:4]=[CH:5]/[C:6]2[NH:7][CH:8]=[CH:9][CH:10]=2)[CH2:3][CH2:2]1.O.[C:12]([OH:16])(=[O:15])[CH:13]=O.[NH3:17].Cl>>[CH:1]1([CH:4]=[CH:5][C:6]2[NH:7][C:8]([CH:13]([C:12]([OH:16])=[O:15])[NH2:17])=[CH:9][CH:10]=2)[CH2:3][CH2:2]1Participants
5
Procedure
cis-/trans-2-(2-Cyclopropylvinyl)pyrrole (3.0 g., 0.023 mole) was added to a stirred solution of glyoxylic acid hydrate (2.1 g., 0.023 mole) in 0.880 (sp. gr.) ammonia solution (15 ml.) and the reaction mixture heated at 60° for 2.5 hours, then allowed to cool. The pH was adjusted to 5-6 with concentrated hydrochloric acid, and the mixture was then filtered. The resulting solid was washed with water, acetone and diethyl ether, and dried under vacuum to provide DL-2-[5-(2-cyclopropylvinyl)-2-pyrrolyl]glycine as a pink solid (1.2 g.), M.P. 275°.
Workup
- temperaturethe reaction mixture heated at 60° for 2.5 hours
- temperatureto cool
- filtrationthe mixture was then filtered
- washThe resulting solid was washed with water, acetone and diethyl ether
- customdried under vacuum
Sources & evidence
- ORD record
- ord-00ab5c9c696245689bd05bf72825c076
- Source dataset
- uspto-grants-1981_01
- Patent number
- US04243672
Reaction notes
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