Photochemical dealkylation of 2-acyl-3-alkylamino-5,5-dimethyl-2-cyclohexen-1-ones.
نویسندگان
چکیده
منابع مشابه
Mannich Reaction with 5,5-Dimethyl-3-phenylamino-2-cyclohexen-l-one
W. S. Hamama, M. Hammouda*, and E. M. Afsah Chemistry Department, Faculty of Science, Mansoura University, Mansoura, Egypt Z. Naturforsch. 43b, 483-486 (1988); received August 18, 1986/October 26, 1987 Mannich Bases of Enaminones, Octahydro-9H-pyrimido[5,4-b]-azepines, Tetrahydro-4H-[3,l]benzoxazin-5(6H)-one, Nitrogen Heterocycles Mannich reaction of the title compound 1 with morpholine, piperi...
متن کامل2-(Alkylamino)-3-aryl-6,7-dihydrobenzofuran-4(5H)-ones: Improved Synthesis and their Photophysical Properties
Furans are an important class of compounds and exhibit a diverse range of activities and properties. As such, improved synthetic access to furans is an important research goal. In the present report, a solvent- and catalyst-free reaction between 5,5-dimethyl-1,3-cyclohexanedione (dimedone), an aryl aldehyde and an isocyanide under microwave irradiation is presented. This method is significantly...
متن کاملNew 6-oxa-2-silabicyclo[2.2.0]hexanes by photochemical conversion of acyl(allyl)(dimethyl)silanes.
Under UV irradiation in acetonitrile, acyl(allyl)silanes undergo an intramolecular (2+2) cycloaddition (Paternò-Büchi type reaction) to give unprecedented 1-alkyl-6-oxa-2-silabicyclo[2.2.0] hexanes.
متن کاملSYNTHESIS OF 3-ARYLMETHYL-4- THIAZOLIDINE-CARBOXYLIC ACID-2-ONES AND 2-THIONES
Barium salts of dibenzylidene cystines 8a-c were obtained from the reaction of Lcystine with benzaldehyde or its derivatives in the presence of barium hydroxide. Their reduction with zinc and hydrochloric acid in methanol yielded the Narylmethylcysteines ?9a-c?. These can, in turn, be converted by esterification into the methyl esters ?10 a-c. ?Reaction of N, N'-carbonyl diimidazole (Im C...
متن کاملUncatalyzed Synthesis of Arylmethylene[bis(5,5-dimethyl-3-hydroxy-2-cyclohexene-1-ones)] in Hot Water by Domino Knoevenagel/Michael Reactions
A simple and ecofriendly method was developed for the synthesis of arylmethylene[bis(5,5- dimethyl-3-hydroxy-2-cyclohexene-1-ones)] from the reaction of 5,5-dimethylcyclohexane- 1,3-dione and aromatic aldehydes in an aqueous media without any catalyst via Knoevenagel condensation followed by rapid Michael addition. No cyclization product was down to convert these enolic forms to xanthene deriva...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Chemical and Pharmaceutical Bulletin
سال: 1982
ISSN: 0009-2363,1347-5223
DOI: 10.1248/cpb.30.1692