17588-35-1Relevant academic research and scientific papers
Novel syntheses of spiropyran photochromatic compounds using ultrasound
Torres,Vazquez,Gonzalez
, p. 105 - 110 (1995)
Photochromatic derivatives 1,3,3-trimethylindoline-2-spiro-2'-benzopyran, were synthesized using ultrasound as energy source (55 watt), reaction times are between 10 to 20 min, obtaining higher or slightly lower yield than the conventional reported methods.
