Iminoester fluoroborates

Amidines from carboxylic acid amides via iminoester fluoroborates... [Pg.368]

Oxonium fluoroborate Iminoester fluoroborates from carboxylic acid amides... [Pg.61]

Startg. amide ester allowed to react 10 min. with triethyloxonium tetrafluoro-borate, the resulting crude iminoester fluoroborate dissolved in the minimum... [Pg.531]

Sodium tetrahydridoborate/trialkyloxonium fluoroborate Sec. and tert. amines from carboxylic acid amides via iminoester fluoroborates... [Pg.331]

Finally, amidine 76 was prepared by the iminoester fluoroborate sequence (Figure 7.21). The utility of the amidine for generation of 1,3-diazines is demonstrated by the reaction of 76 with ethyl 4-chloro-2-methylthio-5-pyrimidinecarboxylate to afford the [2- C]-pyrimido-[4,5]pyrimidone 72, and with ethyl cyanoacetate-2-oxime to furnish the [2- C]-pyrimidine-6-one 79. Compounds 77 and W were precursors for the synthesis of carbon-14-labeled phosphodiesterase inhibitors 78 and respectively. Another option for... [Pg.409]

N-halogenocarboxylic acid amides 21, 388 22, 262 N-heterocyclics 16,930 iminoester fluoroborates... [Pg.248]

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