Syntheses of negative photochromic crowned spirobenzopyrans

Article abstract of DOI:10.1080/00397910008087102

Two synthetic routes to negative photochromic spirobenzopyrans bearing a monoazacrown moiety at the 8-position were described and compared. Method B gives much higher total yield than method A.

Full text of DOI:10.1080/00397910008087102

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Synthetic Communications: An
International Journal for Rapid
Communication of Synthetic
Organic Chemistry
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Syntheses of Negative
Photochromic Crowned
Spirobenzopyrans
Sheng-Hua Liu a & Cheng-Tai Wu a
a Department of Chemistry , Wuhan University ,
Wuhan, 430072, P. R. China
Published online: 04 Dec 2007.
To cite this article: Sheng-Hua Liu & Cheng-Tai Wu (2000) Syntheses of Negative
Photochromic Crowned Spirobenzopyrans, Synthetic Communications: An International
Journal for Rapid Communication of Synthetic Organic Chemistry, 30:5, 895-902, DOI:
10.1080/00397910008087102
To link to this article: http://dx.doi.org/10.1080/00397910008087102
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