Syntheses of Negative Photochromic Crowned Spirobenzopyrans
摘要:
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.
Syntheses of Negative Photochromic Crowned Spirobenzopyrans
摘要:
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.
Syntheses of Negative Photochromic Crowned Spirobenzopyrans
作者:Sheng-Hua Liu、Cheng-Tai Wu
DOI:10.1080/00397910008087102
日期:2000.3
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.