24248-99-5

Upstream product

• 111422-39-0 2-tert-butylphenyl benzoate 
• 591-50-4 iodobenzene 
• 24623-65-2 3-tert-butyl-2-hydroxybenzaldehyde 
• 55022-25-8 7-(tert-butyl)-3-phenylbenzofuran-2(3H)-one 
• 108-86-1 bromobenzene 
• 60772-81-8 3-tert-butyl-2-methoxybenzoic acid 
• 2944-48-1 2-tert-butylanisole 
• 911001-84-8 3-tert-butyl-2-hydroxybenzhydrol 
• 71-43-2 benzene 

Downstream Products

• 134268-04-5 7-t-butyl-3-phenyldihydrobenzofuran 
• 134268-30-7 3-t-butyl-2-methoxybenzophenone hydrazone 
• 134267-94-0 3-t-butyl-2-methoxyphenyl(phenyl)diazomethane 
• 134268-08-9 3-t-butyl-2-methoxyphenyl(phenyl)methyl methyl ether 
• 1374329-54-0 3-acetyl-8-tert-butyl-4-phenyl-2H-chromen-2-one 
• 134268-25-0 3-t-butyl-2-methoxybenzophenone 

Relevant academic research and scientific papers

Oxidation of secondary benzylic alcohols to ketones by activated carbon-molecular oxygen system

A variety of benzylic alcohols were oxidized to the corresponding carbonyl compounds selectively in the presence of activated carbon under molecular oxygen atmosphere. This process does not require any metal oxides, thus this is environmentally friendly and economical. Copyright

TRANSITION METAL COMPOUND, CATALYST FOR OLEFIN POLYMERIZATION AND METHOD FOR PRODUCING OLEFIN POLYMER

PROBLEM TO BE SOLVED: To provide a transition metal compound that, when used as a component of a catalyst for olefin polymerization, has high olefin polymerization activity even at a polymerization temperature suitable in commercial production, and allows production of a high molecular weight polymer. SOLUTION: A transition metal compound represented by formula A-1 or the like. SELECTED DRAWING: None COPYRIGHT: (C)2020,JPOandINPIT

Nickel-Catalyzed Decarbonyloxidation of 3-Aryl Benzofuran-2(3H)-ones to 2-Hydroxybenzophenones

We have developed a protocol to facilitate the nickel-catalyzed decarbonyloxidation of 3-aryl benzofuran-2(3H)-ones to 2-hydroxybenzophenones under mild conditions, which is an efficient approach for the decarbonyloxidation of lactones in organic synthesis. A diverse range of substrates can undergo C(O)-O/C(O)-C bond cleavage to generate the target products in good yields. These 2-hydroxybenzophenones can be converted into a variety of compounds via reactions such as esterification, cyclization, and reduction.

One-pot synthesis of 3,4-disubstituted coumarins under catalysis of Mn 3O4 nanoparticles

The one-pot synthesis of 3,4-disubstituted coumarins from substituted 2-(hydroxymethyl)phenols with β-keto esters catalyzed by Mn 3O4 nanoparticles was developed. A series of 3,4-disubstituted coumarin derivatives were obtained in good yields. A new method for the one-pot synthesis of 3,4-disubstituted coumarins from substituted 2-(hydroxymethyl)phenols with β-keto esters catalyzed by Mn 3O4 nanoparticles has been developed. A series of 3,4-disubstituted coumarin derivatives were synthesized from substituted 2-(hydroxymethyl)phenols and β-keto esters in good yields. Copyright

New chiral Schiff base as a tridentate ligand for catalytic enantioselective addition of diethylzinc to aldehydes

We have developed new chiral Schiff base catalysts for the enantioselective addition of diethylzinc reagents to aldehydes. The reaction of benzaldehyde with diethylzinc in the presence of 1 mol % of the chiral Schiff base catalyst proceeded to afford 1-phenyl-1-propanol in 96% enantiomeric excess (ee).

Buttressing Effect in Carbene Chemistry. Effect of 3-Alkyl Groups on the Reactions of 2-Alkoxydiphenylcarbenes

Irradiation of 2-methoxydiphenyldiazomethane 1a in diethyl ether at 10 deg C gave 3-phenyldihydrobenzofuran 3a along with a small amount of the ether adduct 4a, which became the major product when the irradiation was carried out in the ether matrix at -196 deg C.The reaction patterns were dramatically changed as an alkyl group was introduced into the 3-position of substrates 1.Thus, irradiation of 2-methoxy-3-alkyldiphenyldiazomethanes 1b-d in diethyl ether either at 10 deg C or at -196 deg C afforded the corresponding benzofurans 3b-d at the complete expense of the ether adducts 4b-d.The results are nicely explained in terms of the buttressing effect of the 3-alkyl group, which prevents the 2-methoxy group from lying in the plane of the phenyl ring in the precursor molecules and assists the methoxy group in rotating around the C-O bond toward the carbene centre after elimination of N2.Generation of carbenes 2 in methanol at 10 deg C produced O-H insertion adducts 5 as the major product at the expense of benzofurans 3.The ether 5a was formed as a major product in the reaction of carbene 2a with the alcohol matrix at -196 deg C, but the benzofurans 3 became the major product in the irradiation of substrates 1b-d in methanol matrix at -196 deg C.The results are again explicable in terms of the buttressing effect of 3-alkyl substituents on the relative populations of thew rotational isomers of the carbenes 2.The effect of the 3-alkyl group on the reaction of 2,2',5'-trimethoxydiphenylcarbenes 7 which form two kinds of intramolecular C-H insertion products 8 and 9 were studied and the results are again discussed in terms of the buttressing effect.