Stereospecific control of the cyclization reaction of sterically strained E-benzylidene(diphenylmethylene)-succinic anhydride
Organic Chemistry
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Conclusions
- 1.
The x-ray diffraction analysis of the structure of E-benzylidene(diphenylmethylene)-succinic anhydride has been carried out.
- 2.
The direction of the photo- and thermochromic cyclization reaction of this compound is controlled by steric factors; the phenyl substituent of the diphenylmethylene fragment appears to be drawn closer to the reactive methylene center corresponding to it in comparison with the phenyl substituent of the benzylidene fragment.
Keywords
Methylene Phenyl Anhydride Diffraction Analysis Cyclization Reaction
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© Plenum Publishing Corporation 1987