Liebigs Annalen der Chemie

Thermochrome Furofurane, II. Synthese und Thermolyseverhalten substituierter Spirochinolether der Naphthalinreihe

H Laatsch, BP Ernst

Index: Laatsch, Hartmut; Ernst, Bernd Peter Liebigs Annalen der Chemie, 1992 , # 12 p. 1245 - 1250

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Citation Number: 3

Abstract

To obtain further insight into the new photochromic system furanes (type 2/3) on heating, but decomposed by retro-diene 2/3, various 3, 4-disubstituted spiroquinole ethers 7 have been reaction yielding monomeric methides 6. The sterically hinsynthesized by oxidation of 2- alkyl-4-methoxy-1-naphtholes 5 dered methides 6e, 6f are stable yellow compounds; 6c rearvia the corresponding quinone methides 6. Unlike? a, the ranged forming 12 which ...