92765-75-8Relevant articles and documents
A facile synthesis of an (E)-4-methyl-4-hexenoic acid substituted pyridine analogue of mycophenolic acid
Lee,Anderson
, p. 369 - 376 (1992)
An (E)-4-methyl-4-hexenoic acid substituted pyridine analogue, 2, of mycophenolic acid has been synthesized from 6-methyl-2-pyridine-carboxaldehyde in 6 steps via a Claisen rearrangement.
Transition-Metal-Free Regioselective Alkylation of Pyridine N-Oxides Using 1,1-Diborylalkanes as Alkylating Reagents
Jo, Woohyun,Kim, Junghoon,Choi, Seoyoung,Cho, Seung Hwan
supporting information, p. 9690 - 9694 (2016/08/10)
Reported herein is an unprecedented base-promoted deborylative alkylation of pyridine N-oxides using 1,1-diborylalkanes as alkyl sources. The reaction proceeds efficiently for a wide range of pyridine N-oxides and 1,1-diborylalkanes with excellent regioselectivity. The utility of the developed method is demonstrated by the sequential C?H arylation and methylation of pyridine N-oxides. The reaction also can be applied for the direct introduction of a methyl group to 9-O-methylquinine N-oxide, thus it can serve as a powerful method for late-stage functionalization.
Bis(oxazoline) lewis acid catalyzed aldol reactions of pyridine N-oxide aldehydes-synthesis of optically active 2-(1-hydroxyalkyl)pyridine derivatives: Development, scope, and total synthesis of an indolizine alkaloid
Landa, Aitor,Minkkilae, Anna,Blay, Gonzalo,Jergensen, Karl Anker
, p. 3472 - 3483 (2008/02/03)
A new. short, and simplified procedure for the synthesis of optically active pyridine derivatives from prochiral pyridine-N-oxides is presented. The catalytic and asymmetric Mukaiyama aldol reaction between ketene silyl acetals and l-oxypyridine-2-carhaldehyde derivatives catalyzed by chiral copper(ii)-bis(oxazoline) complexes gave optically active 2-(hydroxyalkyl)-and 2-(anti-1.2-dihydroxyalkyl)pyridine derivatives in good yields and diastereoselectivities, and in excellent enantioselectivities - up to 99% enantiomeric excess. As a synthetic application of the developed method, a full account for the asymmetric total synthesis of a nonnatural indolizine alkaloid is provided.