Synthesis and photochromic properties of cycloalkylidene fulgides

Synlett

Volumn , Issue 16, 2005, Pages 2473-2477

  Lee, Wei Woon Wayne ^a,b   Gan, Leong Ming ^b   Loh, Teck Peng ^c  

^a NATIONAL UNIVERSITY OF SINGAPORE   (Singapore)

^b INSTITUTE OF MATERIALS RESEARCH AND ENGINEERING   (Singapore)

^c Nanyang Technological University   (Singapore)

Author keywords

Electrocyclic reactions; Fulgide; Fulgimide; Microwave; Photochromic

Indexed keywords

2,5 DIMETHYLTHIOPHENE CYCLOPENTYLIDENE FULGIDE; ALPHA BETA UNSATURATED DIESTER; BETA GAMMA UNSATURATED DIESTER; CYCLOALKYLIDENE FULGIDE; ESTER DERIVATIVE; ISOPROPYLIDENE DIETHYL SUCCINATE; ORGANIC COMPOUND; SUCCINIC ACID DERIVATIVE; UNCLASSIFIED DRUG;

ARTICLE; STRUCTURE ANALYSIS; SYNTHESIS;

EID: 26844532130     PISSN: 09365214     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-2005-917082     Document Type: Article

References (17)

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13. The observation of the migration of the double bond was also reported then.
14. Compound 10 was obtained in 40% yield and 8 in 9% yield, respectively.
15. 1H NMR of the reaction mixture.
16. 1H NMR and not isolated. The cyclopentanone used to obtain 11 also tends to afford the self-condensed product quite readily.
17. This was to ensure the complete formation of the diacid and to maximize yield. Yields of synthesized fulgides were much lower when this step was omitted.