Methyl trans-3-(boc-amino)cyclobutanecarboxylate Property

Boiling point:

314.1±31.0 °C(Predicted)

Density 

1.10±0.1 g/cm3(Predicted)

storage temp. 

2-8°C

pka

12.05±0.40(Predicted)

form 

solid

color 

White

Safety

HS Code 

2922498590

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Methyl trans-3-(boc-amino)cyclobutanecarboxylate Chemical Properties,Usage,Production

Synthesis

Methyl /rara-3-amino-cyclobutanecarboxylate hydrochloride (39.94 g, 241 mmol) was suspended in dichloromethane (400 ml). The solution was cooled to 0°C before Et3N (4 equiv., 134 ml, 965 mmol) and Boc anhydride (1.2 equiv., 63.2 g, 289 mmol) were added. The cooling bath was removed and the mixture was stirred while slowly allowing to warm up to room temperature. After 20 hours of stirring, the salts were filtered off and the filtrate was rinsed three times with water. The organic layer was dried over sodium sulfate, filtered and concentrated in vacuo. The residue was triturated in heptane, the solid was filtered off and dried in air flow to give Methyl trans-3-(boc-amino)cyclobutanecarboxylate as a white solid.