104563-60-2

Upstream product

• 90035-32-8 3-(4-hydroxyphenyl)-3,4-dihydronaphthalen-1(2H)-one 
• 118806-75-0 3-p-methoxyphenyl-2-carboxy-4-phenylbutyric acid 
• 123-11-5 4-methoxy-benzaldehyde 
• 7443-25-6 dimethyl 2-(4-methoxybenzylidene)malonate 
• 61696-79-5 3,4-dihydro-3-(4-methoxyphenyl)naphthalene-1(2H)-one 
• 1333110-92-1 C₂₀H₂₂O₅ 
• 1076-38-6 4-hydroxy[1]benzopyran-2-one 
• 103772-30-1 1,2,3,4-tetrahydro-3-[4-(4-trifluoromethylbenzyloxy)phenyl]naphthalen-1-ol 

Relevant academic research and scientific papers

Simple synthesis and biological evaluation of flocoumafen and its structural isomers

Simple synthesis and biological properties of flocoumafen 1 and its structural isomers are described. The key synthetic strategies involve Knoevenagel condensation, Grignard reaction, intramolecular ring cyclization and coupling reaction. Flocoumafen 1 was easily separated into cis and trans forms using flash column chromatography. They were then evaluated for suppression of LPS-induced NO generation and anti-excitotoxicity in vitro. It was found that the trans-flocoumafen was potent suppressor of NO generation with the concentration of 10 μM in vitro, while no significant effect for neurotoxicity in cultured cortical neurons. Indian Academy of Sciences.

Rodenticides

Rodenticidal compositions comprising a rodenticidally effective amount of an isomer of a 3-substituted-4-hydroxycoumarin rodenticide which is capable of existing in more than one stable isomeric form. The isomer, for example, the trans isomer of brodifacoum, is significantly less persistently retained in the tissues of non-rodent mammalian or avian species likely to consume the composition or poisoned rodent carcasses than other isomers of the same 3-substituted-4-hydroxycoumarin. The compositins are substantially free of such other isomers, e.g., the cis isomer of brodifacoum, thereby reducing the risk to non-target species from accidental ingestion.

Separation of isomers

Process for selective removal of the cis-isomer and consequent enrichment of a solution with respect to the trans-isomer of a 1-(4-hydroxycoumarin-3-yl)-3-substituted phenyl)tetrahydronaphthalene rodenticide by crystallization from hot solvent.