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Your search keyword '"Naomi Shinohara"' showing total 2 results
Start Over Author "Naomi Shinohara" Topic organic chemistry
2 results on '"Naomi Shinohara"'

1. Repetitive Two-Step Method for o,o,p- and o,p-Oligophenylene Synthesis through Pd-Catalyzed Cross-Coupling of Hydroxyterphenylboronic Acid

Author

Miyuki Yamaguchi, Takeshi Kimura, Naomi Shinohara, and Kei Manabe

Subjects
palladium, Suzuki-Miyaura coupling, oligoarene, nonaflate, Organic chemistry, QD241-441
Abstract

A repetitive two-step method involving the Pd-catalyzed Suzuki-Miyaura coupling of hydroxyterphenylboronic acid and the subsequent nonaflation of the hydroxy group has been developed for the synthesis of oligophenylenes. This method readily afforded o,o,p- and o,p-oligophenylenes with defined chain lengths. X-ray crystallography was employed to obtain the structure of the o,p-oligophenylene 9-mer.

Published
2013
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2. Alternative Access to Lactosamine-derived Oxazoline via 2-Ulose Oxime as a Key Intermediate

Author

Naomi Shinohara, Chiho Yanagi, Eisuke Kaji, Masae Sekine, Takashi Nishino, and Yumiko Osa

Subjects
Pharmacology, Stereochemistry, Organic Chemistry, Substituent, Oxazoline, Oxime, Chloride, Analytical Chemistry, N-Acetyllactosamine, chemistry.chemical_compound, chemistry, Yield (chemistry), medicine, Selectivity, medicine.drug
Abstract

Lactosamine-derived oxazoline was synthesized via 2-ulose oxime as a key intermediate, in which substituent effects of the acyloxyimino group were investigated. On reduction of the oxime to amino group, p-chlorobenzoyloxime provided a good gluco: manno selectivity of 13: 1. N-Acetyllactosaminyl chloride derived therefrom was readily converted into the oxazoline by AgOTf-promoted cyclization with an 84% yield.

Published
2004
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