Diketene → HCID 14627908, compound
Reaction equation
[CH:1]1([NH2:4])[CH2:3][CH2:2]1.[CH2:5]=[C:6]1[O:10][C:8](=[O:9])[CH2:7]1>O1CCCC1>[CH:1]1([NH:4][C:8](=[O:9])[CH2:7][C:6](=[O:10])[CH3:5])[CH2:3][CH2:2]1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 0 °C
Procedure
26 ml (0.38 mmol) cyclopropylamine was added dropwise to a solution of 30 g of diketene (0.36 mol) in 300 ml tetrahydrofuran at −5 to 0° C. After 1 h stirring at 0° C. no more starting material was detected by thin layer chromatography. The reaction mixture was evaporated and the residue purified by column chromatography. This gave 43.83 g (0.31 mol, 87% yield) of a white solid.
Workup
- customThe reaction mixture was evaporated
- customthe residue purified by column chromatography
Sources & evidence
- ORD record
- ord-027c4a0ac32b470e9eefb339a2ba359c
- Source dataset
- uspto-grants-2016_07
- Patent number
- US09394324B2
Reaction notes
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