1240563-32-9Relevant academic research and scientific papers
The Generation of Difluoroketenimine and Its Application in the Synthesis of α,α-Difluoro-β-amino Amides
Zhang, Rui,Zhang, Zhikun,Zhou, Qi,Yu, Lefei,Wang, Jianbo
supporting information, p. 5744 - 5748 (2019/03/28)
Fluorine-containing β-amino acids and their derivatives have attracted significant attention due to their importance in life sciences. Herein the previously unknown difluoroketenimine, the analogue of the elusive difluoroketene, has been generated by the
Photochemical Alkene Isomerization for the Synthesis of Polysubstituted Furans and Pyrroles under Neutral Conditions
Walker, Johannes C. L.,Werrel, Simon,Donohoe, Timothy J.
supporting information, p. 13114 - 13118 (2019/10/22)
A photochemical approach to polysubstituted heterocycles using UV-induced alkene isomerization is described. The method allows for the synthesis of disubstituted furans and pyrroles under mild and neutral conditions and also provides access to a class of trisubstituted furans pertinent to natural-product synthesis. The method has broad functional-group tolerance and many richly decorated heterocycles have been prepared incorporating functional groups that are unstable under Br?nsted and Lewis acidic conditions.
Synthesis of Benzyl Amines via Copper-Catalyzed Enantioselective Aza-Friedel-Crafts Addition of Phenols to N -Sulfonyl Aldimines
Shikora, Jonathan M.,Chemler, Sherry R.
supporting information, p. 2133 - 2137 (2018/04/30)
A new copper-catalyzed enantioselective aza-Freidel-Crafts reaction between phenols and N-sulfonyl aldimines that provides chiral secondary benzylamines in good to excellent yields and excellent enantioselectivities (up to 99% ee) is disclosed. In particular, excellent scope with alkylimines was observed for the first time. The synthetic utility of the products was demonstrated in the first enantioselective synthesis of a dual orexin receptor antagonist, a compound that contains an amine-bearing stereocenter adjacent to a bis-ortho-functionalized arene.
PROCESS FOR PRODUCING OPTICALLY ACTIVE BETA-AMINO ALDEHYDE COMPOUND
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Paragraph 0122, (2013/08/28)
The invention relates to a method of producing optically active β-aminoaldehyde compound (3) by reacting imine compound (1-1) or sulfone compound (1-2) with aldehyde compound (2) in the presence of an optically active pyrrolidine compound. wherein each sy
Asymmetric Mannich reaction of imines derived from aliphatic and aromatic aldehydes catalyzed by diarylprolinol silyl ether
Urushima, Tatsuya,Ishikawa, Hayato,Hayashi, Yujiro
supporting information; experimental part, p. 8273 - 8276 (2011/09/12)
Anti Mannich, try this! A direct asymmetric Mannich reaction catalyzed by a diarylprolinol silyl ether was developed to afford the anti-Mannich product with excellent enantioselectivity. Imines derived from both aliphatic and aromatic aldehydes were successfully used to obtain the synthetically important β-amino aldehydes (see scheme; Ts=tosyl). The reaction can also be performed in the presence of water. Copyright
Substituted pyrroles via olefin cross-metathesis
Donohoe, Timothy J.,Race, Nicholas J.,Bower, John F.,Callens, Cedric K. A.
supporting information; experimental part, p. 4094 - 4097 (2010/11/04)
Olefin cross-metathesis (CM) provides a short and convenient entry to diverse trans-γ-aminoenones. When exposed to either acid or Heck arylation conditions, these intermediates are converted to mono-, di-, or trisubstituted pyrroles. The value of this che
