83038-71-5

Basic information

• Product Name: 4-benzylbenzoic acid cholesteryl ester
• Synonyms: 4-benzylbenzoic acid cholesteryl ester
• CAS NO: 83038-71-5
• Molecular Weight: 580.894
• Mol File: 83038-71-5.mol
• Article Data: 6

Chemical Properties

• CAS DataBase Reference: 4-benzylbenzoic acid cholesteryl ester(CAS DataBase Reference)
• NIST Chemistry Reference: 4-benzylbenzoic acid cholesteryl ester(83038-71-5)
• EPA Substance Registry System: 4-benzylbenzoic acid cholesteryl ester(83038-71-5)

Safety Data

• Hazardous Substances Data: 83038-71-5(Hazardous Substances Data)

Upstream product

• 28144-70-9 anthranilic acid amide 
• 100-53-8 phenylmethanethiol 
• 943868-13-1 4-benzylsulfanyl-2,3,5,6-tetrafluoropyridine 
• 620-86-0 4-Benzylbenzoic acid 
• 611-95-0 4-carboxybenzophenone 
• 134-84-9 4-Methylbenzophenone 
• 57-88-5 cholesterol 
• 22746-83-4 4-benzylbenzoyl chloride 

Relevant articles and documents

Aromatization as an Impetus to Harness Ketones for Metallaphotoredox-Catalyzed Benzoylation/Benzylation of (Hetero)arenes

Herein we report ketones as feedstock materials in radical cross-coupling reactions under Ni/photoredox dual catalysis. In this approach, simple condensation first converts ketones into prearomatic intermediates that then act as activated radical sources for cross-coupling with aryl halides. Our strategy enables the direct benzylation/benzoylation of (hetero)arenes under mild reaction conditions with high functional group tolerance.

Thermal Properties of Cholesteryl and β-Sitosteryl Esters: The Effect of the Rigid Core on the Thermal Stabilities of Cholesteric and Smectic A Phases

The effect of a central linkage X on the thermal stabilities of the cholesteric and smectic A phases of cholesteryl and β-sitosteryl esters of 4-aryl-X-benzoic and 4-aryl-X-cyclohexanecarboxylic acids (X=-COO-, -CH=N-, -N=N-, -CO-, etc.) has been examined.In both series, the cholesteric-isotropic and smectic A-cholesteric transition temperatures and the transition enthalpies are discussed in terms of the molecular structures and also the angular correlation parameter J22 of the carboxy functions.The transition enthalpies for the smectic A-cholesteric transition are also discussed in terms of the McMillan theory.

Effect of Chain Length on Mesomorphism of Steroid Esters of 4-(4-Alkylphenyl-X)benzoic Acids with X = CO, O, S, and CH2

To examine the effect of bent shapes on mesomorphic properties a homologous series of steroid esters have been prepared: H(CH2)n-4-C6H4-X-4-C6H4COOR, X = CO, O, S, CH2, R = cholesteryl, β-sitosteryl, cholestanyl, stigmasteryl, ergosteryl; n = 0-15.The chain elongation results in an increase in not only the molecular length but also the breadth due to the angular linkage, X.The steroid portions are of primary importance for the mesomorphic properties of the present series, and the thermal stability of the mesophases is strongly dependent on the mesogenic power of the aryl portions, where the effective order is CO > O > S > CH2.The transition enthalpies and entropies for the smectic A-cholesteric and cholesteric-isotropic (Ch-I) transitions are almost independent of the chain length of the alkyl group, indicating that a long alkyl chain has no role from a thermodynamical piont of view.Within the mesophases, the aryl and steroid cores are assumed to be piled up, interacting with each other, and the alkyl groups are apart from each other to avoid short-range interaction.