3,5-Dioxo-piperidine-1-carboxylicacidtert-butylester Property

Boiling point:

346.2±32.0 °C(Predicted)

Density 

1.199±0.06 g/cm3(Predicted)

storage temp. 

under inert gas (nitrogen or Argon) at 2-8°C

form 

solid

pka

9.72±0.20(Predicted)

color 

Light yellow to yellow

CAS DataBase Reference

396731-40-1

Safety

HS Code 

2933399990

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

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P302+P352IF ON SKIN: wash with plenty of soap and water.

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

P321Specific treatment (see … on this label).

P330Rinse mouth.

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P362Take off contaminated clothing and wash before reuse.

P501Dispose of contents/container to..…

3,5-Dioxo-piperidine-1-carboxylicacidtert-butylester Chemical Properties,Usage,Production

Uses

3,5-Dioxo-piperidine-1-carboxylicacidtert-butylester can be used as organic synthesis intermediate and pharmaceutical intermediate, mainly used in laboratory research and development process and chemical production process.

Synthesis

To a cooled (5 ??C) and stirred mixture of potassium 2-methyl-2-propoxide (29.7 g,0.27 mol) was added a solution of ethyl [A/-((1,1-dimethylethoxy)carbonyl),A/-(2-oxopropyl)]glycinate (65 g, 0.25 mol) in ethyl ether (200 ml) over a period of 1.5 h. The re- sulting mixture was stirred for an additional 3 h, and the formed precipitate was filtered offand washed with ethyl ether (2 x 100 ml). The solid was dissolved in water (150 ml), andacetic acid was added to adjust the pH to 4. The product was filtered, washed with water (2x 50 ml) and air dried to furnish 1 -[(1,1 -dimethylethoxy)carbonyl]-3,5-dioxopiperidine (28 g,52 %).>xxN'TOHPLC-MS: m/z: 158 (M+H-56).1H-NMR (DMSO-d6): 81.48 (9H, s), 4.03 (4H, s), 5.38 (1 H, s).