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- W2030761674 abstract "Nickel(II) octa(4-morpholinyl)- (11a) and copper(II) octa(1-pyrrolidinyl)- (11b) azaphthalocyanines have been prepared from the corresponding pyrazine diiminoimides (10). The precursor pyrazine dicarbonitriles (2) gave 6-cyanopyrazine-5-alkyl carboximidates (3-9) as stable intermediates when reacted with ammonia and catalytic amounts of sodium alkoxide in alcohols. Compounds 3-9 were converted to the diiminoimides 10 upon reflux in propanol or butanol for several hours. This unusual reaction pattern was observed for pyrazine-2,3-dicarbonitriles 2 substituted in the 5- and 6-positions with morpholine, thiomorpholine, piperidine or pyrrolidine." @default.
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- W2030761674 date "1999-08-01" @default.
- W2030761674 modified "2023-10-17" @default.
- W2030761674 title "Syntheses of Octa(dialkylamino)azaphthalocyanines" @default.
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- W2030761674 doi "https://doi.org/10.1002/(sici)1099-1409(199908/10)3:6/7<417::aid-jpp150>3.0.co;2-f" @default.
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