1991 Volume 49 Issue 5 Pages 392-402
The recent results concerning the synthesis and characteristic of spiro-oxazine compounds have been summarized.
The absorption bands of usual spiro-oxazine compounds are changed from colorless to colored form by irradiation of ultraviolet ray.
This mechanism is derived from the cleavage of oxazine ring. Such properties are dependent on, its chemical structure and surrounded matrix of spiro-oxazine compounds.
The chemical structure of this compound is similar to the well known spiropyran. But, spiro-oxazine compounds have been noticed recently, because of excellent high light-sensitivity and superior fatigue-resistant property. This compounds are already applied as photochromic lens, clothes and UV light checker.
