28968-34-5

Basic information

• Product Name: (R)-3-hydroxy-2-methyl-2-phenylpropanoic acid
• Synonyms: (R)-3-hydroxy-2-methyl-2-phenylpropanoic acid
• CAS NO: 28968-34-5
• Molecular Weight: 180.203
• Mol File: 28968-34-5.mol
• Article Data: 5

Chemical Properties

• CAS DataBase Reference: (R)-3-hydroxy-2-methyl-2-phenylpropanoic acid(CAS DataBase Reference)
• NIST Chemistry Reference: (R)-3-hydroxy-2-methyl-2-phenylpropanoic acid(28968-34-5)
• EPA Substance Registry System: (R)-3-hydroxy-2-methyl-2-phenylpropanoic acid(28968-34-5)

Safety Data

• Hazardous Substances Data: 28968-34-5(Hazardous Substances Data)

Upstream product

• 1124258-92-9 C₁₀H₁₂O₂ 
• 24765-53-5 2-methyl-2-phenylpropane-1,3-diol 
• 34713-70-7 2-Phenylpropanal 
• 1369965-81-0 2-((R)-1-(benzyloxy)-2-phenylpropan-2-yl)benzo-1,3-dithiole 
• 1369965-69-4 C₁₆H₁₆OS₂ 
• 16141-26-7 ethyl 3-hydroxy-2-methyl-2-phenylpropanoate 

Downstream Products

• 99553-27-2 (+)-2-(diethylamino)ethyl α-methyltropate 
• 105498-87-1 (+)-2-(diethylamino)ethyl 2-methyl-2-phenyl-3-(tosyloxy)propanoate 

Relevant articles and documents

Enantioselective Desymmetrization of 1,3-Diols by a Chiral DMAP Derivative

We developed an enantioselective desymmetrization of 1,3-diols by a chiral N,N-dimethyl-4-aminopyridine (DMAP) derivative containing a 1,1-binaphthyl with tert-alcohol units. The reactions required only 0.1 mol% of catalyst and showed moderate to high chemoselectivity (monoacylation vs. diacylation) and enantioselectivity (14 examples, up to 95:5 er). Several control experiments revealed that diol units in both the substrate and the catalyst are important to achieve high enantioselectivity.

Chiral phosphoric acid catalyzed highly enantioselective desymmetrization of 2-substituted and 2,2-disubstituted 1,3-diols via oxidative cleavage of benzylidene acetals

A highly enantioselective catalytic protocol for the desymmetrization of a wide variety of 2-substituted and 2,2-disubstituted 1,3-diols is reported. This reaction proceeds through the formation of an "ortho ester" intermediate via oxidation of 1,3-diol benzylidene acetal by dimethyldioxirane (DMDO) and the subsequent proton transfer catalyzed by chiral phosphoric acid (CPA). The mechanism and origins of enantioselectivity of this reaction are identified using DFT calculations. The oxidation by DMDO is rate-determining, and the phosphoric acid significantly accelerates the proton transfer; the attractive interactions between the benzylidene part of the substrate and the 2,4,6-triisopropyl group of CPA are the key to high enantioselectivity.

Molecular Modification of Anticholinergics as Probes for Muscarinic Receptors. 2. Amino Esters of α-Methyltropic Acid

As a continuation of our goals to study molecular probes for muscarinic cholinergic receptors, a series of 3-substituted 2-methyl-2-phenylpropanoates with the general structure C6H5C(CH2X)CH3)COOCH2CH2NEt2 where X=OH, OTs, F, Cl, Br, I, and OAc were prepa