53458-15-4

Basic information

• Product Name: 4,4''-Diethoxybenzoin
• Synonyms: 4,4''-Diethoxybenzoin
• CAS NO: 53458-15-4
• Molecular Formula: C₁₈H₂₀O₄
• Molecular Weight: 300.349
• Mol File: 53458-15-4.mol
• Article Data: 4

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 4,4''-Diethoxybenzoin(CAS DataBase Reference)
• NIST Chemistry Reference: 4,4''-Diethoxybenzoin(53458-15-4)
• EPA Substance Registry System: 4,4''-Diethoxybenzoin(53458-15-4)

Safety Data

• Hazardous Substances Data: 53458-15-4(Hazardous Substances Data)

Upstream product

• 10368-35-1 4-ethoxyphenylacetic acid chloride 
• 2132-57-2 4,4'-diethoxy-deoxybenzoin 
• 10031-82-0 4-ethoxybenzaldehyde 
• 42445-10-3 4,4'-diethoxy-α-bromo-deoxybenzoin 

Downstream Products

• 2132-59-4 4,4'-diethoxybenzil 

Relevant articles and documents

Enantioselective reduction and deracemisation using the non-conventional yeast Pichia glucozyma in water/organic solvent biphasic systems: Preparation of (S)-1,2-diaryl-2-hydroxyethanones (benzoins)

Water/organic solvent two-liquid-phase systems have been successfully applied in the synthesis of enantiomerically pure (S)-benzoin through two different methodologies catalysed by whole cells from the non-conventional yeast Pichia glucozyma: the stereoselective monoreduction of benzil and the deracemisation of benzoin. The presence of the organic solvent influences the redox systems implied in the reactions, avoiding the formation of the corresponding diols, increasing the enantioselectivity and allowing the easy isolation of the products in high yields and excellent enantiomeric excesses. The use of both strategies has been extended to the preparation of different chiral benzoin derivatives.

The Preparation and Measurement of the Temperatures and Heats of Transition of the Liquid Crystal Phases of Two Homologous Series: 2-hydroxy-1,2-bis(4-n-alkyloxyphenyl)-1-(4-ethoxyphenyl)iminoethane and (4-n-decyloxyphenyl)iminoethane

Two homologous series A and B, viz, 2-hydroxy-1,2-bis(4-n-alkyloxyphenyl)-1-(4-ethoxyphenyl) and 2-hydroxy-1,2-bis(4-n-alkyloxyphenyl)-1-(4-n-decyloxyphenyl)iminoethanes have been prepared with varying number of carbon atoms in the alkoxy chain.The transition temperatures and textures of the mesophases were determined with a polarizing microscope equipped with a Mettler FP-5 hot stage.The transition temperatures and transition heats were measured using a Perkin-Elmer DSC-2.The compounds of the two series with the same number of carbon atoms do not exhibit the same mesophases.Series A exhibits a nematic phase for compounds with n = 1-16 and also a smectic phase for compounds with n = 10, 12 and 16.Series B shows a nematic mesophase for compounds with n /= 5.