tert-Butyl (2-(2,2-dimethyl-4H-benzo[d][1,3]dioxin-6-yl)-2-oxoethyl)carbamate
- Product Name
- tert-Butyl (2-(2,2-dimethyl-4H-benzo[d][1,3]dioxin-6-yl)-2-oxoethyl)carbamate
- CAS No.
- 452339-71-8
- Chemical Name
- tert-Butyl (2-(2,2-dimethyl-4H-benzo[d][1,3]dioxin-6-yl)-2-oxoethyl)carbamate
- Synonyms
- BNKY020-VT02;Vilanterol Impurity 37;Vilanterol Impurity 30;tert-butyl 2-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl;tert-butyl 2-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl)-2-oxoeth...;tert-butyl 2-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl)-2-oxoethylcarbamate;Tert-butyl 2- (2,2-dimethyl-4H-1,3-benzodoxin-6-yl) -2-oxoethylcarbamate;tert-Butyl N-(2-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl)-2-oxoethyl)carbamate;N-(2-(2,2-Dimethyl-4H-1,3-benzodioxin-6-yl)-2-oxoethyl) tert-butyl carbamate;tert-Butyl (2-(2,2-dimethyl-4H-benzo[d][1,3]dioxin-6-yl)-2-oxoethyl)carbamate
- CBNumber
- CB32716160
- Molecular Formula
- C17H23NO5
- Formula Weight
- 321.37
- MOL File
- 452339-71-8.mol
tert-Butyl (2-(2,2-dimethyl-4H-benzo[d][1,3]dioxin-6-yl)-2-oxoethyl)carbamate Property
- Boiling point:
- 489.1±45.0 °C(Predicted)
- Density
- 1.134±0.06 g/cm3(Predicted)
- pka
- 10.92±0.46(Predicted)
- InChI
- InChI=1S/C17H23NO5/c1-16(2,3)23-15(20)18-9-13(19)11-6-7-14-12(8-11)10-21-17(4,5)22-14/h6-8H,9-10H2,1-5H3,(H,18,20)
- InChIKey
- YIIVONGCNAQATO-UHFFFAOYSA-N
- SMILES
- C(OC(C)(C)C)(=O)NCC(C1=CC=C2OC(C)(C)OCC2=C1)=O
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
-
P280Wear protective gloves/protective clothing/eye protection/face protection.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
tert-Butyl (2-(2,2-dimethyl-4H-benzo[d][1,3]dioxin-6-yl)-2-oxoethyl)carbamate Chemical Properties,Usage,Production
Uses
Tert-Butyl (2-(2,2-dimethyl-4H-benzo[d][1,3]dioxin-6-yl)-2-oxoethyl)carbamate is a Vilanterol impurity. Vilanterol is a novel and selective agonist of β2-ar.
Synthesis
Trifluoroacetic acid (10.2 mL) was added to di-(tert-butyl)2-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl) -2-oxoethyliminodicarbonic acid at 20°C (46.37 g) in a stirred solution of dichloromethane (500 mL) and stirred for 4 hours. Aqueous sodium hydroxide solution (0.5 M, 400 mL) was added to the reaction solution, stirred for half an hour, and separated. The organic layer was washed with water (500 mL), dried, concentrated, and recrystallized from ether to obtain tert-Butyl (2-(2,2-dimethyl-4H-benzo[d][1,3]dioxin-6-yl)-2-oxoethyl)carbamate 15.15g, yield 43 %.
tert-Butyl (2-(2,2-dimethyl-4H-benzo[d][1,3]dioxin-6-yl)-2-oxoethyl)carbamate Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from tert-Butyl (2-(2,2-dimethyl-4H-benzo[d][1,3]dioxin-6-yl)-2-oxoethyl)carbamate manufacturers
- Product
- tert-butyl 2-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl)-2-oxoethylcarbamate 452339-71-8
- Price
- US $0.00-0.00/kg
- Min. Order
- 1kg
- Purity
- 0.99
- Supply Ability
- 100tons
- Release date
- 2023-09-13
- Product
- tert-butyl 2-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl 452339-71-8
- Price
- US $0.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 1 ton
- Release date
- 2023-11-02
- Product
- tert-butyl 2-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl 452339-71-8
- Price
- US $0.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 1 ton
- Release date
- 2023-11-02