1630-62-2Relevant articles and documents
Atom-efficient transition-metal-free arylation ofN,O-acetals using diarylzinc reagents through Zn/Zn cooperativity
Borys, Andryj M.,Gil-Negrete, Jose M.,Hevia, Eva
supporting information, p. 8905 - 8908 (2021/09/10)
Exploiting the cooperative action of Lewis acid Zn(C6F5)2with diarylzinc reagents, the efficient arylation ofN,O-acetals to access diarylmethylamines is reported. Reactions take place under mild reaction conditions without the need for transtion-metal catalysis. Mechanistic investigations have revealed that Zn(C6F5)2not only acts as a Lewis acid activator, but also enables the regeneration of nucleophilic ZnAr2species, allowing a limiting 50 mol% to be employed.
Electrooxidative cyclization of hydroxyamino compounds possessing a benzyl group
Okimoto, Mitsuhiro,Ohashi, Kousuke,Yamamori, Haruki,Nishikawa, Shinnosuke,Hoshi, Masayuki,Yoshida, Takashi
experimental part, p. 1315 - 1322 (2012/06/30)
Several novel 2-aryl-1,3-oxazinane and 2-aryl-1,3-oxazolidine derivatives were synthesized from N-benzyl-2-piperidineethanols and N-benzyl-2- piperidinemethanols, respectively, by using electrooxidative methods in methanol. For these reactions, the yields of the corresponding cyclized compounds were significantly increased by using catalytic amounts of iodide ions. In contrast, 3-dialkylamino-1-phenylpropanols afforded the expected cyclic 6-phenyl-1,3-oxazinane derivatives using only a small excess of base. Georg Thieme Verlag Stuttgart · New York.
Heterogeneous rhodium-catalyzed hydrogenation conditions for the highly effective synthesis of 1,3-oxazolidines from 1,2-amino alcohols and nitriles
Letinois, Stephane,Dumur, Jean-Christophe,Henin, Francoise,Muzart, Jacques
, p. 2327 - 2330 (2007/10/03)
A procedure easily to carried out for the synthesis of 1,3-oxazolidines in high yields using 1,2-amino alcohols, nitriles, an atmospheric pressure of hydrogen and catalytic quantities of rhodium on carbon powder is presented. This reaction probably involves the semi-hydrogenation of the nitrile followed by condensation with the amine alcohol. The process may constitute the key step in a two-step sequence for reducing a nitrile into the corresponding aldehyde.