4-(DIFLUOROMETHOXY)-3-(CYCLOPROPYLMETHOXY)-BENZALDEHYDE
- Product Name
- 4-(DIFLUOROMETHOXY)-3-(CYCLOPROPYLMETHOXY)-BENZALDEHYDE
- CAS No.
- 151103-09-2
- Chemical Name
- 4-(DIFLUOROMETHOXY)-3-(CYCLOPROPYLMETHOXY)-BENZALDEHYDE
- Synonyms
- Roflumilast intermediate A;3-(cyclopropylmethoxy)-4-(difluoromethoxy)benzaldehyde;Roflumilast Impurity 32;RofluMilast interMediate;RofluMilast InterMediate I;Intermediate Of Roflumilast;Benzaldehyde, 3-(cyclopropylMethoxy)-4;ROFLUMILAST INTERMEDIATE CAS 151103-09-2;4-(DIFLUOROMETHOXY)-3-(CYCLOPROPYLMETHOX...;3-CyclopropylMethoxy-4-isopropoxy-benzaldehyde
- CBNumber
- CB9259483
- Molecular Formula
- C12H12F2O3
- Formula Weight
- 242.22
- MOL File
- 151103-09-2.mol
4-(DIFLUOROMETHOXY)-3-(CYCLOPROPYLMETHOXY)-BENZALDEHYDE Property
- Boiling point:
- 331.3±37.0 °C(Predicted)
- Density
- 1.277±0.06 g/cm3(Predicted)
- storage temp.
- under inert gas (nitrogen or Argon) at 2-8°C
- Appearance
- Colorless to light yellow Liquid
- InChI
- InChI=1S/C12H12F2O3/c13-12(14)17-10-4-3-9(6-15)5-11(10)16-7-8-1-2-8/h3-6,8,12H,1-2,7H2
- InChIKey
- AHVVCELVGCPYGI-UHFFFAOYSA-N
- SMILES
- C(=O)C1=CC=C(OC(F)F)C(OCC2CC2)=C1
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H302Harmful if swallowed
- 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.
N-Bromosuccinimide Price
- Product number
- C997803
- Product name
- 3-(Cyclopropylmethoxy)-4-(difluoromethoxy)benzaldehyde
- Packaging
- 50mg
- Price
- $45
- Updated
- 2021/12/16
- Product number
- C997803
- Product name
- 3-(Cyclopropylmethoxy)-4-(difluoromethoxy)benzaldehyde
- Packaging
- 100mg
- Price
- $60
- Updated
- 2021/12/16
- Product number
- X3187
- Product name
- 3-(Cyclopropylmethoxy)-4-(difluoromethoxy)benzaldehyde
- Packaging
- 1g
- Price
- $146
- Updated
- 2021/12/16
- Product number
- 081566
- Product name
- 3-(Cyclopropylmethoxy)-4-(difluoromethoxy)-benzaldehyde
- Purity
- 97%
- Packaging
- 1g
- Price
- $375
- Updated
- 2021/12/16
- Product number
- X3187
- Product name
- 3-(Cyclopropylmethoxy)-4-(difluoromethoxy)benzaldehyde
- Packaging
- 10g
- Price
- $492
- Updated
- 2021/12/16
4-(DIFLUOROMETHOXY)-3-(CYCLOPROPYLMETHOXY)-BENZALDEHYDE Chemical Properties,Usage,Production
Synthesis
7051-34-5
151103-08-1
151103-09-2
The general procedure for the synthesis of 4-(difluoromethoxy)-3-(cyclopropylmethoxy)benzaldehyde from bromomethylcyclopropane and 4-difluoromethoxy-3-hydroxybenzaldehyde was as follows: 55 g of 4-(difluoromethoxy)-3-hydroxybenzaldehyde, 42.42 g of K2CO3 (1.05 eq.), 4.86 g of KI (0.1 eq.), and 220 mL of dimethyl sulfoxide ( DMSO) were added to the reactor. The mixture was heated and stirred at 70 °C for 1 hour. Subsequently, a pre-prepared mixture of 42.65 g of bromomethylcyclopropane (1.08 eq.) and 110 mL of DMSO was slowly added dropwise for a controlled time of 1 hour. After the dropwise addition was completed, the reaction was continued at 70 °C for 3 hours. Upon completion of the reaction, the reaction mixture was cooled to room temperature. The reaction mixture was diluted by adding 375 mL of toluene and filtered to remove unreacted K2CO3. The filtrate was cooled to 0-5 °C and 375 mL of deionized water was added. The organic and aqueous phases were separated and the organic phase was washed twice with 55 mL of deionized water. Finally, the solvent was removed by distillation under reduced pressure to give 70 g (99% yield) of 4-(difluoromethoxy)-3-(cyclopropylmethoxy)benzaldehyde as a viscous pale yellow liquid.
References
[1] Patent: WO2014/60464, 2014, A1. Location in patent: Page/Page column 15
[2] Patent: CN105254559, 2016, A. Location in patent: Paragraph 0041; 0042
[3] Patent: US2008/15226, 2008, A1. Location in patent: Page/Page column 10
[4] Patent: US2006/116373, 2006, A1. Location in patent: Page/Page column 6
[5] Organic and Biomolecular Chemistry, 2018, vol. 16, # 38, p. 6900 - 6908
4-(DIFLUOROMETHOXY)-3-(CYCLOPROPYLMETHOXY)-BENZALDEHYDE Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 4-(DIFLUOROMETHOXY)-3-(CYCLOPROPYLMETHOXY)-BENZALDEHYDE manufacturers
- Product
- Benzaldehyde 151103-09-2
- Price
- US $0.00/KG
- Min. Order
- 1KG
- Purity
- 98.9%
- Supply Ability
- 100 tons
- Release date
- 2022-02-08
- Product
- 4-(DIFLUOROMETHOXY)-3-(CYCLOPROPYLMETHOXY)-BENZALDEHYDE 151103-09-2
- Price
- US $15.00-10.00/KG
- Min. Order
- 1KG
- Purity
- 99%+ HPLC
- Supply Ability
- Monthly supply of 1 ton
- Release date
- 2021-07-10
- Product
- 4-(DIFLUOROMETHOXY)-3-(CYCLOPROPYLMETHOXY)-BENZALDEHYDE 151103-09-2
- Price
- US $15.00-10.00/KG
- Min. Order
- 1KG
- Purity
- 99%+ HPLC
- Supply Ability
- Monthly supply of 1 ton
- Release date
- 2021-07-08