Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Junji Yoshizawa"'
Autor:
Junji Yoshizawa
Publikováno v:
Japanese Journal of Pharmacoepidemiology/Yakuzai ekigaku. 4:105-111
Publikováno v:
ChemInform. 25
Autor:
Akira Hosomi, Jun-ichi Tateiwa, Shin-ya Nakamura, Yoshihiro Funahashi, Makoto Hojo, Junji Yoshizawa, Ryo Okada
Publikováno v:
ChemInform. 30
Publikováno v:
The Journal of Organic Chemistry. 58:6541-6542
Reduction of ketene dithioacetals by samarium iodides was studied. Stereochemical synthesis of organic sulfur compounds was observed via a samarium complex. 2 tabs.
Autor:
Jun-ichi Tateiwa, Shin-ya Nakamura, Yoshihiro Funahashi, Akira Hosomi, Makoto Hojo, Junji Yoshizawa, Ryo Okada
Publikováno v:
HETEROCYCLES. 49:85
Publikováno v:
The Journal of Antibiotics. 35:1500-1506
Forphenicinol, L-2-(3-hydroxy-4-hydroxymethylphenyl)glycine, was synthesized by two methods starting from dimethyl hydroxyterephthalate or DL-2-(3-hydroxyphenyl)glycine. Forphenicine, L-2-(4-formyl-3-hydroxyphenyl)glycine, was prepared from L-forphen
Publikováno v:
JOURNAL OF CHEMICAL ENGINEERING OF JAPAN. 5:361-364
A fully developed turbulent flow of an electrolyte solution in a porous-wall tube with suction or injection flow through the wall was experimentally studied. The measurements of mass transfer rates at the wall were made by an electrochemical method.
Autor:
Junji Yoshizawa, Munemitsu Tomoeda
Publikováno v:
Tetrahedron Letters. 8:975-979
Publikováno v:
Chemical and Pharmaceutical Bulletin. 15:845-853
Pyrolytic cleavage of the azo-bridge of diethyl azodicarboxylate (Ia) at 200∼210° was studied and was shown to give diethyl oxalate (VI), tetraethyl hydrazine-N1, N1, N2, N2-tetra-carboxylate (VIII), triethyl hydrazine-N1, N1, N2-tricarboxylate (I
Autor:
Junji Yoshizawa, Munemitsu Tomoeda
Publikováno v:
J. Chem. Soc. C. :1741-1747
Diethyl azodicarboxylate (I) reacts readily with 3β-benzoyloxy-20-acetoxypregna-5,16,20-triene (V) affording in high yield two isomeric Diels–Alder adducts differing only in their stereochemistry at C(16), 16α-(VIa)(major product) and 16β-(VIb)(