2,5-Diethyl-3,4-dihydro-2H-pyran-2-carbaldehyde

Base Information

• Chemical Name: 2,5-Diethyl-3,4-dihydro-2H-pyran-2-carbaldehyde
• CAS No.: 33731-59-8
• Molecular Formula: C10H16 O2
• Molecular Weight: 168.236
• Hs Code.: 2932999099
• European Community (EC) Number: 251-659-8
• NSC Number: 61264
• DSSTox Substance ID: DTXSID701232617
• Nikkaji Number: J308.531G
• Mol file: 33731-59-8.mol

Synonyms:2,5-Diethyl-3,4-dihydro-2H-pyran-2-carbaldehyde;33731-59-8;EINECS 251-659-8;NSC61264;SCHEMBL3075948;DTXSID701232617;NSC 61264;NSC-61264;2,5-Diethyl-3,4-dihydro-2H-pyran-2-carboxaldehyde

Chemical Property of 2,5-Diethyl-3,4-dihydro-2H-pyran-2-carbaldehyde

Chemical Property:

• Vapor Pressure: 0.0368mmHg at 25°C
• Boiling Point: 241°Cat760mmHg
• Flash Point: 92.1°C
• PSA: 26.30000
• Density: 0.995g/cm³
• LogP: 2.43840
• XLogP3: 1.8
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 2
• Rotatable Bond Count: 3
• Exact Mass: 168.115029749
• Heavy Atom Count: 12
• Complexity: 196

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: CCC1=COC(CC1)(CC)C=O

Technology Process of 2,5-Diethyl-3,4-dihydro-2H-pyran-2-carbaldehyde

There total 3 articles about 2,5-Diethyl-3,4-dihydro-2H-pyran-2-carbaldehyde which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 87.1%

ethylacrolein (922-63-4) → 2,5-diethyl-3,4-dihydro-2H-pyran-2-carbaldehyde (33731-59-8)

Guidance literature:

With hydroquinone; at 190 ℃; for 2h; Sealed ampule; Inert atmosphere;

DOI:10.1007/s10593-009-0200-3

Reference yield:

ethylacrolein (922-63-4) + ethyl 2-methylenebutyrate (3070-65-3) → 2,5-diethyl-3,4-dihydro-2H-pyran-2-carbaldehyde (33731-59-8) + 2-carbethoxy-2,5-diethyl-3,4-dihydro-2H-pyran (1116005-16-3)

Guidance literature:

With hydroquinone; at 170 ℃; for 6h;

Reference yield:

→ 2,5-diethyl-3,4-dihydro-2H-pyran-2-carbaldehyde (33731-59-8)

Guidance literature:

entspr. Acrolein;

DOI:10.1007/BF00909934

upstream raw materials:

ethylacrolein

ethyl 2-methylenebutyrate