1379147-93-9Relevant academic research and scientific papers
A novel approach to isoindolo[2,1-a]indol-6-ones
Duncanson, Philip,Cheong, Yuen-Ki,Motevalli, Majid,Griffiths, D. Vaughan
supporting information; experimental part, p. 4266 - 4279 (2012/07/13)
A convenient route to isoindolo[2,1-a]indol-6-ones has been developed starting from the appropriate 2-(N-phthaloyl)benzoic acids. Formation of the acid chlorides with thionyl chloride followed by heating with triethyl phosphite in a suitable solvent resulted in a multistep reaction giving tetracyclic β-ketophosphonates that on reduction with sodium borohydride gave the required indolones in good overall yields. Analogous β-ketophosphonates were also prepared starting with N,N-(1,8-naphthaloyl)-2-aminobenzoic acid and 2-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)benzoic acids although of these only the naphthaloyl product could be reduced with sodium borohydride without cleaving the amide bond in the ring system.
LIQUID CRYSTAL THERMOSET MONOMER OR OLIGOMER, THERMOSETTING LIQUID CRYSTAL POLYMER COMPOSITION COMPRISING THE SAME AND PRINTED CIRCUIT BOARD USING THE SAME
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, (2009/09/25)
A liquid crystal thermoset (LCT) monomer or oligomer having both ends capped with maleimide having at least one methyl group, represented by Formula 1: wherein R1 and R2 are each independently CH3 or H, and at least one of
