tert-Butyl 2-(4-(pyridin-2-yl)benzyl)hydrazinecarboxylate
- Product Name
- tert-Butyl 2-(4-(pyridin-2-yl)benzyl)hydrazinecarboxylate
- CAS No.
- 198904-85-7
- Chemical Name
- tert-Butyl 2-(4-(pyridin-2-yl)benzyl)hydrazinecarboxylate
- Synonyms
- Atazanavir Intermediate;1-Boc-2-[4-(2-pyridinyl)benzylidene]hydrazine;Atazanavir Impurity B;Atazanavir Impurity 19;1-BOC-2-PYRIDYLPHENYLMETHYL HYDRAZINE;N-1-(tert-butoxycarbonyl)-N-2-[4-(pyri;tert-Butyl4-(2-pyridyl)benzylcarbazate;phenyl]methyl]-,1,1-dimethylethyl ester;Hydrazinecarboxylic acid,2-[[4-(2-pyridinyl);Hydrazinecarboxylicacid,2-[[4-(2-pyridinyl)pheny
- CBNumber
- CB1547452
- Molecular Formula
- C17H21N3O2
- Formula Weight
- 299.37
- MOL File
- 198904-85-7.mol
tert-Butyl 2-(4-(pyridin-2-yl)benzyl)hydrazinecarboxylate Property
- Melting point:
- 74-77 °C
- Density
- 1.117±0.06 g/cm3(Predicted)
- storage temp.
- Keep in dark place,Sealed in dry,Room Temperature
- solubility
- DMSO (Slightly), Methanol (Slightly)
- pka
- 10.38±0.43(Predicted)
- form
- Solid
- color
- White to Pale Yellow
- CAS DataBase Reference
- 198904-85-7(CAS DataBase Reference)
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P280Wear protective gloves/protective clothing/eye protection/face protection.
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).
P332+P313IF SKIN irritation occurs: Get medical advice/attention.
P362Take off contaminated clothing and wash before reuse.
N-Bromosuccinimide Price
- Product number
- B665200
- Product name
- 1-Boc-2-[4-(2-pyridinyl)benzylidene]hydrazine
- Packaging
- 1g
- Price
- $250
- Updated
- 2021/12/16
- Product number
- FB18876
- Product name
- 1-Boc-2-[4-(2-pyridinyl)benzylidene]hydrazine
- Packaging
- 5G
- Price
- $350
- Updated
- 2021/12/16
- Product number
- J11252
- Product name
- AtazanavirImpurityB
- Packaging
- 25mg
- Price
- $39
- Updated
- 2021/12/16
- Product number
- FB18876
- Product name
- 1-Boc-2-[4-(2-pyridinyl)benzylidene]hydrazine
- Packaging
- 1g
- Price
- $120
- Updated
- 2021/12/16
- Product number
- FB18876
- Product name
- 1-Boc-2-[4-(2-pyridinyl)benzylidene]hydrazine
- Packaging
- 250mg
- Price
- $50
- Updated
- 2021/12/16
tert-Butyl 2-(4-(pyridin-2-yl)benzyl)hydrazinecarboxylate Chemical Properties,Usage,Production
Chemical Properties
White Solid
Uses
An intermediate for the preparation of antiviral protease inhibitors.
Synthesis
Step 1: A mixture of 4-(pyridin-2-yl)benzaldehyde X (17.7 g, 96.6 mmol) and tert-butylcarbamate (12.2 g, 92.3 mmol) in ethanol (125 mL) was kept at reflux under nitrogen for 4 hours (h). The reaction mixture was cooled to 40 ??C and ice (60 g) was added. The resulting mixture was stirred for 20 minutes (min). The precipitate was collected by filtration, washed with water and dried in a vacuum oven (60 ??C). Product XII, yield 25.0 g, 91%.
Step 2: A solution of the above product (23.15 g, 77.85 mmol) in methanol (350 ml) was treated with 20% palladium activated charcoal (2.3 g, 50% wet) and hydrogenated at 10 psi for 4 hours. The reaction mixture was filtered through diatomaceous earth and the filter cake was washed with methanol and the solvent was removed in a rotary evaporator. The residue was recrystallized with heptane and dried in a vacuum oven (40 ??C). The product 2-[4-(2-pyridinyl)benzyl]-hydrazinecarboxylic acid tert-butyl ester was obtained in a yield of 2.48 g, 97%.
tert-Butyl 2-(4-(pyridin-2-yl)benzyl)hydrazinecarboxylate Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from tert-Butyl 2-(4-(pyridin-2-yl)benzyl)hydrazinecarboxylate manufacturers
- Product
- tert-Butyl 2-(4-(pyridin-2-yl)benzyl)hydrazinecarboxylate 198904-85-7
- Price
- US $0.00/Kg/Bag
- Min. Order
- 1KG
- Purity
- 98%min
- Supply Ability
- 500kg
- Release date
- 2021-09-09
- Product
- tert-Butyl 2-(4-(pyridin-2-yl)benzyl)hydrazinecarboxylate 198904-85-7
- Price
- US $0.00/kg
- Min. Order
- 1kg
- Purity
- 98%
- Supply Ability
- 1 Ton
- Release date
- 2022-12-09
- Product
- tert-Butyl 2-(4-(pyridin-2-yl)benzyl)hydrazinecarboxylate 198904-85-7
- Price
- US $5.00-0.10/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- g-kg-tons, free sample is available
- Release date
- 2024-04-16