Aziridine-2,2-dicarboxylates: Synthesis, reactions, and photochromism

Liebigs Annales

Volumn , Issue 9, 1997, Pages 1895-1899

  Schirmeister, Tanja ^a  

^a UNIVERSITY OF FREIBURG   (Germany)

Author keywords

3 Phenylaziridine 2,2 dicarboxylates; Azomethine ylides; Cycloadditions; Nucleophilic additions; Photochromism

Indexed keywords

EID: 0010049106     PISSN: 09473440     EISSN: None     Source Type: Journal    
DOI: 10.1002/jlac.199719970914     Document Type: Article

References (35)

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22. I = 0.67 mM (3a).
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26. t(enantiomer 2) = 33 min.
27. Crystals of 3b only develop a light-red colouration after exposure to light for several weeks. This difference in the behaviour of aziridines 3a and 3b is most likely attributable to conformational differences in the unit cell.
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31. Crystal data of compound 10 will be published in due course.
32. 6]DMSO.
33. Structure elucidation and assignment of NMR signals was carried out by the following NMR methods: ID-NOE, NOESY, INEPT long range and HETCOR, respectively.
34. The compound is assigned the cis configuration on the basis of NOEs between 3-H, 4-H and 5-H.
35. The compound is assigned the traits configuration on the grounds that no NOEs are observed between 2-H and 5-H.