tert-Butyl 3,9-diazaspiro[5.5]undecane-3-carboxylate Chemical Properties

Melting point:

0°C

Boiling point:

0°C

Density 

1.05

Flash point:

0°C

storage temp. 

2-8°C(protect from light)

form 

solid

pka

11.00±0.20(Predicted)

color 

White

Safety Information

Risk Statements 

36/37/38-20/21/22-68

Safety Statements 

26-36-36/37/39-28

HS Code 

29339900

tert-Butyl 3,9-diazaspiro[5.5]undecane-3-carboxylate Usage And Synthesis

Synthesis

Under argon atmosphere, wet Pd/C (188.05 mg, 159.50 μmol, purity 10%) was added into tert-butyl 9-benzyl-3,9-diazaspiro[5.5]undecane-3-carboxylate in THF solution (1.10 g, 3.19 mmol), after replacing the gas in the flask 3 times with hydrogen, the reaction was stirred at 40°C for 40 hours under 45 Psi. After completion of the reaction, the solution was filtered through diatomite. The filtrate was concentrated to give the crude tert-Butyl 3,9-diazaspiro[5.5]undecane-3-carboxylate.

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