tert-Butyl piperidine-4-carboxylate Chemical Properties

Boiling point:

241.0±33.0 °C(Predicted)

Density 

0.976±0.06 g/cm3(Predicted)

storage temp. 

2-8°C(protect from light)

pka

9.78±0.10(Predicted)

Appearance

Colorless to off-white Solid-Liquid Mixture

InChI

InChI=1S/C10H19NO2/c1-10(2,3)13-9(12)8-4-6-11-7-5-8/h8,11H,4-7H2,1-3H3

InChIKey

FUYBPBOHNIHCHM-UHFFFAOYSA-N

SMILES

N1CCC(C(OC(C)(C)C)=O)CC1

Safety Information

HS Code 

2933399990

tert-Butyl piperidine-4-carboxylate Usage And Synthesis

Synthesis

Wet Degussa-type Pd/C catalyst (10% Pd, 50% water content, 8.120 g, 76.30 mmol) was added to a 3 L three-necked flask under nitrogen protection, followed by EtOAc (1.706 L). The mixture was degassed by a nitrogen/vacuum cycle (3 times). Then, a solution of EtOAc (243.7 mL) of 1-benzyl-4-tert-butylpiperidine-1,4-dicarboxylate (243.7 g, 763.0 mmol) was added. The reaction mixture was stirred overnight under hydrogen atmosphere. After supplementing with hydrogen, stirring was continued for 3.5 hours. Methanol (60 mL) was added to promote dissolution of the precipitate, which was subsequently filtered through a diatomaceous earth pad and washed with methanol. The filtrate was concentrated under reduced pressure to give a brown oil (138.6 g) containing a small amount of white solid. The solid was removed by filtration and washed with a minimal amount of EtOAc. The filtrate was again concentrated under reduced pressure to give tert-butyl piperidine-4-carboxylate (129 g, 91% yield) as a light brown oil. The product was characterized by 1H NMR (500 MHz, DMSO-d6) with chemical shifts of δ 2.88 (dt, 2H), 2.44 (td, 2H), 2.23 (tt, 1H), 1.69-1.64 (m, 2H), 1.41-1.33 (m, 11H).

References

[1] Patent: US2015/158872, 2015, A1. Location in patent: Paragraph 0508; 0510
[2] Patent: WO2006/38039, 2006, A1. Location in patent: Page/Page column 17; 29
[3] Patent: WO2015/65866, 2015, A1. Location in patent: Page/Page column 32

tert-Butyl piperidine-4-carboxylate(138007-24-6)Related Product Information

• 1-Boc-piperidine
• 4-PIPERIDINECARBOXYLIC ACID T-BUTYL ESTER HCL
• BENZOIC ACID TERT-BUTYL ESTER
• BOC-PIPERAZINE HYDROCHLORIDE
• Carbamic acid, 3-pyridazinyl-, 1,1-dimethylethyl ester (9CI)
• 3-thiophenecarboxylic acid tert-butyl ester
• TERT-BUTYL THIOMORPHOLINE-4-CARBOXYLATE
• tert-butyl pyridine-2-carboxylate
• tert-Butyl piperidine-4-carboxylate
• H-GAMMA-ABU-OTBU HCL