tert-Butyl 4-(methoxy(methyl)carbamoyl)piperidine-1-carboxylate → tert-Butyl 4-formylpiperidine-1-carboxylate
Reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([C:14](=[O:19])N(OC)C)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2]>O1CCCC1>[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([CH:14]=[O:19])[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2]Participants
3
Reactant 1
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 0 °C
Procedure
4-(methoxy-methyl-carbamoyl)-piperidine-1-carboxylic acid tert-butyl ester (1.0 eq, 16.4 mmol) was dissolved in 100 ml dry tetrahydrofurane under inert atmosphere. This solution was added dropwise over a period of 1 h to a suspension of lithiumalanate (3.0 eq, 49.6 mmol) in 70 ml dry tetrahydrofurane at −50° C. During the adding of the mixture, the temperature was held at −50° C. and then allowed to warm to 0° C. within 3 h.
Workup
- additionDuring the adding of the mixture
- customwas held at −50° C.
Sources & evidence
- ORD record
- ord-510687f4b4624580a35f8ed04055319f
- Source dataset
- uspto-grants-2009_10
- Patent number
- US07601745B2
Reaction notes
Loading…