Appukkuttan, Prasad published the artcileMicrowave-assisted transition-metal-catalyzed synthesis of N-shifted and ring-expanded buflavine analogues, Formula: C11H16BNO3, the publication is Chemistry – A European Journal (2007), 13(22), 6452-6460, database is CAplus and MEDLINE.
Buflavine analogs I (R = H, MeO) and II (R = H, MeO) are prepared using microwave-assisted Suzuki-Miyaura coupling reactions and ring-closing metathesis reactions as key steps. Suzuki-Miyaura coupling of the bromostyrenes III (R = H, MeO) with an (allyl)(pivaloyl)aminoboronic acid provides a biaryl which undergoes selective ring-closing metathesis in the presence of either the first or the second-generation Grubbs catalysts followed by olefin hydrogenation to yield I (R = H, MeO); attempted reduction of a related vinylnitrostyrene gives inseparable mixtures of the desired biphenylamines along with phenanthridines generated by reductive cyclization. Suzuki-Miyaura coupling of III (R = H, MeO) with 2-formylbenzeneboronic acid, reductive amination with allylamine followed by reductive methylation of the amines, ring-closing metathesis with the second-generation Grubbs catalyst, and olefin hydrogenation provides II (R = H, MeO).
Chemistry – A European Journal published new progress about 146140-95-6. 146140-95-6 belongs to amides-buliding-blocks, auxiliary class Boronic acid and ester,Amine,Benzene,Amide,Boronic Acids,Boronic Acids,Boronic acid and ester,, name is (2-Pivalamidophenyl)boronic acid, and the molecular formula is C11H16BNO3, Formula: C11H16BNO3.
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https://en.wikipedia.org/wiki/Amide,
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