Search

Your search keyword '"Asami Sasaoka"' showing total 1 results
Start Over Author "Asami Sasaoka" Journal journal of chemical research
1 results on '"Asami Sasaoka"'

1. Selective Ring-expansion of Oxirane into Tetrahydropyran and Tetrahydrofuran by Reagent-controlled Conditions

Author

Munetaka Tokumasu, Asami Sasaoka, Yoshikazu Hiraga, and Katsuo Ohkata

Subjects
chemistry.chemical_classification, chemistry.chemical_compound, chemistry, Reagent, Halide, Organic chemistry, Salt (chemistry), General Chemistry, Lewis acids and bases, Tetrahydropyran, Ring (chemistry), Medicinal chemistry, Tetrahydrofuran
Abstract

Ring-expansion of methyl 2-bromomethyl-5-oxiranylpent-2-enoate (7) with various acids was studied; treatment with Lewis acids (TiBr4, MgBr2 and ZnBr2) afforded the tetrahydrofuran derivative 4-Br as a major product, while reaction with silver salt (AgNO3/KPF6), which is known to have a high halide affinity, gave preferentially the tetrahydropyran 3-ONO2 derivatives as the major products.

Published
1998
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results