synthesis of 7-(or 8-) Hydroxy- and 7-(or 8-) Hydroxy-2-nethylflavanone in the Presence of Polyphos phoric Acid

نویسندگان

چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

8-Hydroxy-2-methylquinoline

The asymmetric unit of the title compound, C(10)H(9)NO, contains two independent mol-ecules which are linked by a pair of O-H⋯N hydrogen bonds into a hydrogen-bonded dimer.

متن کامل

SYNTHESIS OF 8-HYDROXY-6-METHOXY- 3-UNDECYLISOCOUMARIN AND 2-HY DROXY - 4-METHOXY-6-(2-OXOTRIDECYL) BENZOIC ACID

Straightforward conversion of (+)-6,8-dimethoxy-3,4-dihydro-3- undecylisocoumarin (3) to the title isocoumarin was carried out. Hydrolytic ring opening of (3) afforded the hydroxy acid (4) which was immediately oxidized to keto acid (5) using chromic acid, Cyclodehydration of (5) afforded the 6,8- dimethoxy-3-undecylisocoumarin (6) which on selective demethylation of 8- methoxy group furni...

متن کامل

synthesis of 8-hydroxy-6-methoxy- 3-undecylisocoumarin and 2-hy droxy - 4-methoxy-6-(2-oxotridecyl) benzoic acid

straightforward conversion of (+)-6,8-dimethoxy-3,4-dihydro-3- undecylisocoumarin (3) to the title isocoumarin was carried out. hydrolytic ring opening of (3) afforded the hydroxy acid (4) which was immediately oxidized to keto acid (5) using chromic acid, cyclodehydration of (5) afforded the 6,8- dimethoxy-3-undecylisocoumarin (6) which on selective demethylation of 8- methoxy group furnished ...

متن کامل

Design, synthesis and anti-HIV integrase evaluation of N-(5-chloro-8-hydroxy-2-styrylquinolin-7-yl)benzenesulfonamide derivatives.

Styrylquinoline derivatives are demonstrated to be HIV-1 integrase inhibitors. On the basis of our previous CoMFA analysis of a series of styrylquinoline derivatives, N-[(2-substituted-styryl)-5-chloro-8-hydroxyquinolin-7-yl]-benzenesulfonamide derivatives were designed and synthesized,and their possible HIV IN inhibitory activity was evaluated.

متن کامل

(8-Bromo-2-hydroxy-7-methoxy-1-naph­thyl)(4-chlorobenzoyl)methanone

In the title compound, C(18)H(12)BrClO(3), the naphthalene ring system and the benzene ring make a dihedral angle of 82.18 (9)°. The conformation around the central C=O group is such that the C=O bond vector forms a larger angle to the plane of the naphthalene ring system than to the plane of the benzene ring, viz. 60.91 (16)° versus 13.94 (16)°. In the crystal structure, two π-π inter-actions ...

متن کامل

ذخیره 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: Nippon kagaku zassi

سال: 1961

ISSN: 0369-5387,2185-0917

DOI: 10.1246/nikkashi1948.82.12_1728