1156487-27-2

Upstream product

• 890840-88-7 1,2-difluoro-3-(prop-2-yn-1-yloxy)benzene 
• 6418-38-8 2,3-difluorophenol 
• 1156487-26-1 7,8-difluoro-6-[1-(4-propylcyclohexyl)prop-2-ynyloxy]-chroman 
• 1029476-88-7 7,8-difluorochroman-6-ol 
• 1029476-87-6 7,8-difluoro-3,4-dihydro-1-benzopyran 
• 1029476-86-5 7,8-difluoro-2H-chromene 

Downstream Products

• 1156487-16-9 5,6-difluoro-3-(4-propylcyclohexyl)-1,2,3,8,9,10-hexahydropyrano[3,2-f]chromene 

Relevant academic research and scientific papers

BENZO[F]CHROME ANY PYRANO[3,2-F]CHROME DERIVATIVES FOR USE IN LIQUID CRYSTAL MEDIA

The present invention relates to benzo[f]chromene and pyrano[3,2-f]-chromene derivatives of the formula I in which L1, L2, R1, R2, A1, A2, Z1, Z2, m and n are as defined in claim 1, to the preparation thereof, to the use thereof as components in liquid-crystalline media, and to electro-optical display elements which contain the liquid-crystalline media according to the invention.