20633-28-7

Upstream product

• 4160-82-1 3,3-dimethylglutaric anhydride 
• 71-43-2 benzene 

Downstream Products

• 20215-60-5 4,4-dimethyl-6-phenyltetrahydro-2H-pyran-2-one 
• 53755-65-0 3,3-dimethyl-5-phenylpentanoic acid 
• 92327-50-9 3,3-dimethyl-5-phenyl-5-semicarbazono-valeric acid 
• 26366-19-8 4,4-dimethyl-6-phenyl-3,4-dihydro-pyran-2-one 
• 1217548-87-2 2-((2-phenylallyl)oxy)acetic acid 
• 1258204-04-4 3,3-dimethyl-5-phenylhex-5-enoic acid 

Relevant academic research and scientific papers

Divergent Access to (1,1) and (1,2)-Azidolactones from Alkenes using Hypervalent Iodine Reagents

A versatile synthesis of azidolactones through azidation and cyclization of carboxylic acids onto alkenes has been developed. Based on either photoredox or palladium catalysis, (1,1) and (1,2) azido lactones can be selectively synthesized. The choice of catalyst and benziodoxol(on)e reagent serving as azide source was essential to initiate either a radical or Lewis acid mediated process with divergent outcome. These transformations were carried out under mild conditions using a low catalyst loading and gave access to a large scope of azido lactones.

Enantioselective Bromolactonization of Deactivated Olefinic Acids

A novel enantioselective bromolactonization of α,β-unsaturated ketones using bifunctional amino-urea catalysts has been developed. The scope of the reaction is evidenced by 23 examples of halolactones bearing various functionalities with up to 99% yield a

Substituted guanidine derivatives and process for producing the same

A compound represented by the general formula (1): wherein each of R1, R2, R3, R4and R5is a hydrogen atom, an alkyl group, a substituted alkyl group, an alkenyl group, an alkynyl group, a cycloalkyl group, a cycloalkenyl group, a saturated heterocyclic group, an aromatic group, an acyl group or the like; each of Y1, Y2, Y3and Y4is a single bond, —CH2—, —O—, —CO— or the like, provided that at least two of Y1through Y4are independently a group other than a single bond; and Z may be absent, or one or more Zs may be present and are independently an alkyl group, a substituted alkyl group, an alkenyl group, an alkynyl group, a cycloalkyl group, a cycloalkenyl group, a saturated heterocyclic group, a halogen atom, a carboxyl group, an alkoxycarbonyl group, an aromatic group, an acyl group or the like, is useful as a therapeutic or prophylactic agent for diseases caused by the acceleration of the sodium/proton exchange transport system.