55000-47-0

Basic information

• Product Name: 3,5-Dimethylbenzoic acid (3,5-dimethylphenyl)methyl ester
• Synonyms: 3,5-Dimethylbenzoic acid (3,5-dimethylphenyl)methyl ester
• CAS NO: 55000-47-0
• Molecular Formula: C₁₈H₂₀O₂
• Molecular Weight: 268.35
• Mol File: 55000-47-0.mol
• Article Data: 4

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 3,5-Dimethylbenzoic acid (3,5-dimethylphenyl)methyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: 3,5-Dimethylbenzoic acid (3,5-dimethylphenyl)methyl ester(55000-47-0)
• EPA Substance Registry System: 3,5-Dimethylbenzoic acid (3,5-dimethylphenyl)methyl ester(55000-47-0)

Safety Data

• Hazardous Substances Data: 55000-47-0(Hazardous Substances Data)

Upstream product

• 27129-87-9 3,5-dimethylbenzyl alcohol 
• 108-67-8 1,3,5-trimethyl-benzene 
• 5779-95-3 3,5-dimethylbenzaldehyde 

Relevant articles and documents

Manganese Pincer Complexes for the Base-Free, Acceptorless Dehydrogenative Coupling of Alcohols to Esters: Development, Scope, and Understanding

Aliphatic PNP pincer-supported earth-abundant manganese(I) dicarbonyl complexes behave as effective catalysts for the acceptorless dehydrogenative coupling of a wide range of alcohols to esters under base-free conditions. The reaction proceeds under neat conditions, with modest catalyst loading and releasing only H2 as byproduct. Mechanistic aspects were addressed by synthesizing key species related to the catalytic cycle (characterized by X-ray structure determination, multinuclear (1H, 13C, 31P, 15N, 55Mn) NMR, infrared spectroscopy, inter alia), by studying elementary steps connected to the postulated mechanism, and by resorting to DFT calculations. As in the case of related ruthenium and iron PNP catalysts, the dehydrogenation results from cycling between the amido and amino-hydride forms of the PNP-Mn(CO)2 scaffold. For the dehydrogenation of alcohols into aldehydes, our results suggest that the highest energy barrier corresponds to the hydrogen release from the amino-hydride form, although its value is close to that of the outer-sphere dehydrogenation of the alcohol into aldehyde. This contrasts with the ruthenium and iron catalytic systems, where dehydrogenation of the substrate into aldehyde is less energy-demanding compared to hydrogen release from the cooperative metal-ligand framework.

Easy access to benzylic esters directly from alkyl benzenes under metal-free conditions

An efficient metal free protocol has been developed for the synthesis of benzylic esters via a cross dehydrogenative coupling (CDC) involving alkylbenzene(s) as a self- or as a cross-coupling partner(s) via the intermediacy of Ar-COOH and the benzylic carbocation obtained from the other half of the alkylbenzene; both symmetrical as well as unsymmetrical esters can be prepared using Bu4NI and TBHP. The Royal Society of Chemistry.