Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Josephine S. O. Park"'
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 1. :697-709
The synthesis of analogues of the spiroketal-containing pyranonaphthoquinone antibiotic griseusin A 1 is described. The key disconnection focused on hydroxyalkylation of naphthol 21 with aldehyde 12. Aldehyde 12 was prepared from oxazolidinone 5 and
Publikováno v:
Organic Letters. 1:1459-1462
The synthesis of pyranonaphthoquinone-spiroacetals (3 and 4), which are synthetic analogues of the pyranonaphthoquinone antibiotic griseusin A (1) is reported. The oxygenated substituents on the spiroacetal ring were introduced onto the key naphthale
Publikováno v:
ChemInform. 31
Publikováno v:
ChemInform. 31
The synthesis of analogues of the spiroketal-containing pyranonaphthoquinone antibiotic griseusin A 1 is described. The key disconnection focused on hydroxyalkylation of naphthol 21 with aldehyde 12. Aldehyde 12 was prepared from oxazolidinone 5 and
Publikováno v:
Molecules. 5:M135
A mixture of alcohol 1 (104 mg, 0.20 mmol) [1], triethylamine (41 l, 0.30 mmol) and 3,5-dinitrobenzoyl chloride (55 mg, 0.24 mmol) in dichloromethane (2 ml) was stirred for 2 h. at 30oC.[...]
Publikováno v:
Molecules. 5:M137
To a suspension of sodium hydride (5.9 mg, 60% in oil, 0.15 mmol) in tetrahydrofuran (0.34 ml) which contained a few drops of N,N-dimethylformamide, under nitrogen at 0°C, was added alcohol 1 (65 mg, 0.11 mmol) [1] in tetrahydrofuran (1.7 ml).[...]
Publikováno v:
Molecules. 5:M134
A solution of ceric ammonium nitrate (37 mg, 0.067 mmol) in water was added dropwise to a vigorously stirred solution of naphthol 1 (13 mg, 0.036 mmol) [1] in acetonitrile (2.2 ml) at room temperature and stirred for 15 min.[...]
Publikováno v:
Molecules. 5:M138
To a solution of alcohol 1 (225 mg, 0.43 mmol) [1] in dry N , N-dimethylformamide (0.9 ml) at 0°C under an atmosphere of nitrogen was added imidazole (72 mg, 1.1 mmol) and tert-butyldimethylsilyl chloride (67 mg, 0.45 mmol).