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Start Over Author "Tayu M" Journal chemical communications cambridge england
2 results on '"Tayu M"'

1. Synthesis of N -(acyloxy)- N -alkynylamides via generation of "C 2 " from hypervalent alkynyliodane and a weak base.

Author

Kagami K, Liang X, Ishibashi N, Ohrui S, Tayu M, and Saito N

Subjects
Cyclization, Catalysis, Copper, Amides
Abstract

The first synthesis of N -(acyloxy)ynamides was realized through the coupling of N -(acyloxy)amides and hypervalent alkynyliodane under mild conditions. This reaction probably involves biradical species ("C 2 ") generation and radical processes. Furthermore, we also demonstrated that N -(acyloxy)ynamide could be transformed into a N -sulfonylimidate derivative by a copper catalyst. This study provides new building blocks for synthetic organic chemistry reactions and improves understanding of the chemical reactivity of "C 2 ".

Published
2023
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2. Active thionium species mediated functionalization at the 2α-position of indole derivatives.

Author

Higuchi K, Tayu M, and Kawasaki T

Subjects
Acetic Anhydrides, Carbon chemistry, Dimethyl Sulfoxide chemistry, Fluoroacetates, Trifluoroacetic Acid chemistry, Indoles chemistry, Quaternary Ammonium Compounds chemistry
Abstract

A combination of dimethyl sulfoxide (DMSO) and trifluoroacetic anhydride (TFAA) mediates functionalization at the 2α-position of indole derivatives. Carbon and heteroatom nucleophiles were directly introduced via a one-pot procedure in excellent yields., (This journal is © The Royal Society of Chemistry 2011)

Published
2011
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