Red Colouring Photochromic 6′-Substituted Spiroindolinon Aphth[2,1-b][1,4]Oxazines
作者:M. Rickwood、S. D. Marsden、M. E Ormsby、A. L. Staunton、D. W. Wood、J. D. Hepworth、C. D. Gabbutt
DOI:10.1080/10587259408037780
日期:1994.5
Electron donating/withdrawing substituents and electronegative centres have been successfully employed in substantially widening the range of photo-generated colours available in the spiroindolinonaphthoxazine class of photochromic materials.