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Obituary
Yoshito Kishi (1937-2023)
Yoshito Kishi (1937-2023)
Professor. Yoshito Kishi,
a member of the Honorary Editorial Associates of HETEROCYCLES,
has passed away on January 9, 2023 at the age of 85.
I deeply express my regret over his death.
Kunio Ogasawara
Editor
January 13, 2023
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Paper | Regular issue | Vol 51, No. 11, 1999, pp.2639-2651
Published online, 1st January, 1970■ Synthesis of New Spiropyrans and Spirooxazines Having a Heteroaromatic Pendant and Their Photochromic Behavior
Published online, 1st January, 1970
DOI: 10.3987/COM-99-8663
■ Synthesis of New Spiropyrans and Spirooxazines Having a Heteroaromatic Pendant and Their Photochromic Behavior
Xiaoliu Li, Yongmei Wang, Teruo Matsuura, and Jiben Meng*
*Department of Chemistry, Nankai University, Tianjin 300071 P. R., China
Abstract
Two series of novel spiropyrans and spirooxazines having a heteroaromatic pendant were synthesized using two convenient methods. Their photochromic behaviors were investigated with the aid of absorption spectral measurements. The compounds showed several features different from the parent Spiro compounds, including an inhibitory effect on the fatigue during the photochromic process of spiropyrans.
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