TY - JOUR
T1 - Palladium-Catalyzed Acylation of Terminal Alkynes toward 3-Ynone-Linked Chlorophyll- a Derivatives and Their Optical Properties
AU - Nakano, Takeo
AU - Tamiaki, Hitoshi
N1 - Funding Information:
This work was supported by JSPS KAKENHI grant number JP17H06436 in Scientific Research on Innovative Areas “Innovation for Light-Energy Conversion (I 4 LEC)”.
Publisher Copyright:
Copyright © 2019 American Chemical Society.
PY - 2019/12/20
Y1 - 2019/12/20
N2 - The Pd-catalyzed acylation reactions of terminal 3-ethynyl moieties of chlorophyll-a (Chl-a) derivatives are described herein. Both acyl chlorides and acid anhydrides were valuable reagents for the coupling, resulting in the formation of π-conjugation extended Chl-a derivatives possessing a carbonyl-ethynyl group at the C3-position. The ultraviolet-visible absorption and fluorescence emission data were obtained in solution to evaluate the optical properties of the 3-ynone-linked Chl-a derivatives.
AB - The Pd-catalyzed acylation reactions of terminal 3-ethynyl moieties of chlorophyll-a (Chl-a) derivatives are described herein. Both acyl chlorides and acid anhydrides were valuable reagents for the coupling, resulting in the formation of π-conjugation extended Chl-a derivatives possessing a carbonyl-ethynyl group at the C3-position. The ultraviolet-visible absorption and fluorescence emission data were obtained in solution to evaluate the optical properties of the 3-ynone-linked Chl-a derivatives.
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U2 - 10.1021/acs.joc.9b02607
DO - 10.1021/acs.joc.9b02607
M3 - Article
C2 - 31714080
AN - SCOPUS:85075668935
SN - 0022-3263
VL - 84
SP - 16116
EP - 16123
JO - Journal of Organic Chemistry
JF - Journal of Organic Chemistry
IS - 24
ER -