29474-63-3

Upstream product

• 90-47-1 xanth-9-one 
• 108-95-2 phenol 
• 20735-05-1 9,9-Dichloroxanthene 
• 92-83-1 xanthene 

Downstream Products

• 1217439-70-7 9,9-bis[4-(4-cyanophenoxy)phenyl]xanthene 
• 1217439-71-8 9,9-bis[4-(4-nitrophenoxy)phenyl]xanthene 

Relevant academic research and scientific papers

Bisphenolic compounds that enhance cell cation transport are found in commercial phenol red

We have isolated two bisphenolic compounds (4 and 5) that have a marked effect on K+ and Na+ concentrations in human cells from commercial preparations of the pH indicator dye phenol red (phenolsulfonphthalein). We used a bioassay to

Palladium-copper catalyzed C(sp3)-C(sp2) bond C-H activation cross-coupling reaction: Selective arylation to synthesize 9-aryl-9: H -xanthene and 9,9-diaryl-xanthene derivatives

A novel cooperatively catalyzed C(sp3)-C(sp2) bond C-H activation cross-coupling reaction has been developed. A series of 9-aryl-9H-xanthenes and 9,9-diaryl-xanthenes were selectively synthesized in moderate to good yields by control

Synthesis and characterization of new soluble polyamides from 9,9-bis[4-(chloroformylphenoxy)phenyl]xanthene and various aromatic diamines

9,9-Bis(4-hydroxyphenyl)xanthene (BHPX) was synthesized in 82% yield from xanthenone in a one-pot, two-step synthetic procedure. A new diacyl chloride monomer, 9,9-bis[4-(chloroformylphenoxy)phenyl]xanthene (BCPX), was synthesized in three steps from the nucleophilic fluorodisplacement of 4-fluorobenzonitrile with the dipotassium bisphenolate of BHPX, followed by alkaline hydrolysis of the intermediate bis(ether nitrile), and then chlorination with thionyl chloride. Several novel aromatic polyamides containing ether and bulky xanthene groups with the inherent viscosities (0.72-0.98 dL/g) were prepared by the low temperature polycondensation of BCPX with various aromatic diamines in N,N-dimethylacetamide (DMAc) solution containing pyridine (Py). All new polyamides were amorphous and readily soluble in various polar solvents such as DMAc, N,N-dimethylformamide (DMF), N-methyl-2-pyrrolidone (NMP) and Py. These polymers showed relatively high glass transition temperatures between 236 and 298 °C, decomposition temperatures at 10% weight loss ranging from 490 to 535 °C and 483 to 515 °C in nitrogen and air, respectively, and char yields at 700 °C in nitrogen higher than 50%. Transparent, flexible, and tough films of these polymers cast from DMAc solutions exhibited tensile strengths ranging from 82 to 106 MPa, elongations at break from 10% to 25%, and initial moduli from 2.0 to 2.8 GPa.

Fungicidal use of phenolic aromatic compounds

A plant fungicide method comprises applying to the locus of a plant pathogen a fungicidally effective amount of a compound of formula (I) STR1 or a salt or a complex thereof, wherein: R1, R2, R3, R4, R5, R6, R7, and R8 are independently H, halo, NO2, (C1 -C4) alkyl, or halo(C1 -C4) alkyl; R3', R4', R5', R3", R4", and R5" are independently H, halo, OH, or CH3, provided that at least one is OH; R6 ' and R6 " are independently H or OH.