38632-79-0

Upstream product

• 46926-44-7 1,4-di(5'-hydroxy) pentyl benzene 
• 7789-60-8 phosphorus tribromide 
• 624-38-4 para-diiodobenzene 
• 5390-04-5 pent-1-yn-5-ol 

Downstream Products

• 134520-11-9 6,6'-p-phenylene-di-hexanoic acid 
• 38628-38-5 1,4-Di-hept-6-ynyl-benzene 

Relevant academic research and scientific papers

The first asymmetric Sonogashira coupling for the enantioselective generation of planar chirality in paracyclophanes

The double Sonogashira coupling of diiodoparacyclophanes with alkynes proceeded to give planarly chiral dialkynylparacyclophanes; a chiral Pd catalyst, which was prepared in situ from PdCl2(CH 3CN)2 and Taniaphos, realized the first asymmetric Sonogashira coupling with up to ca. 80% ee.

Synthesis and Evaluation of a Series of Bis(pentylpyridinium) Compounds as Antifungal Agents

A series of bis(4-pentylpyridinium) compounds with a variety of spacers between the pyridinium headgroups was synthesised, and the antifungal activity of these compounds was investigated. Lengthening the alkyl spacer between the pentylpyridinium headgroups from 12 to 16 methylene units resulted in increased antifungal activity against C. neoformans and C. albicans, but also resulted in increased hemolytic activity and cytotoxicity against mammalian cells. However, inclusion of an ortho-substituted benzene ring in the centre of the alkyl spacer resulted in decreased cytotoxicity and hemolytic activity, while maintaining antifungal potency. Replacement of the alkyl and aromatic-containing spacers by more hydrophilic ethylene glycol groups resulted in a loss of antifungal activity. Some of the compounds inhibited fungal PLB1 activity, but the low correlation of this inhibition with antifungal potency indicates PLB1 inhibition is unlikely to be the predominant mode of antifungal action of this class of compounds, with preliminary studies suggesting they may act via disruption of fungal mitochondrial function.

Quaternary ammonium compounds having muscle relaxation activity

A quaternary ammonium having a muscle relaxation activity compound represented by the formula (I): STR1 wherein R1 represents a methylene, a lower alkylenoxy, a lower alkenylene, a lower alkynylene, --CO--, --COO--, a lower alkylene carbonyloxy, --CH(OR5)--, a lower alkylenecarbonyl, a hydroxy lower alkylene, --O--, --S--, --SO--, or --SO2 --; R2 represents a hydrogen atom, a hydroxy lower alkyl, an aldehyde, a lower alkyl carbonyl, --NO2, or --NHR6 ; R3 represents a hydrogen atom of a group --R1 --(CH2)a --[CH(CH2 A)--CH2 ]b --A; R4 represents an anion; R5 and R6 represent a hydrogen atom or a acetyl; A represents a quaternary ammonium group; a represents an integer of 1 to 8; b represents 0 or 1; m represents an integer of 1 to 4; and (Z) represents a trivalent benzene ring, a trivalent naphthalene ring, a trivalent diphenyl or a trivalent ethane radical.