842169-80-6Relevant articles and documents
Tertiary amine compound, bisphosphine ligand, and intermediate and preparation method of tertiary amine compound
-
Paragraph 0232; 0236-0239; 0240; 0250-0252, (2019/11/20)
The invention discloses a tertiary amine compound, a bisphosphine ligand, and an intermediate and a preparation method of the tertiary amine compound, and provides a tertiary amine compound preparation method, which comprises: under the protection of a ga
Enantioselective Friedel–Crafts Alkylation Reaction of Heteroarenes with N-Unprotected Trifluoromethyl Ketimines by Means of Chiral Phosphoric Acid
Miyagawa, Masamichi,Yoshida, Masaru,Kiyota, Yuki,Akiyama, Takahiko
supporting information, p. 5677 - 5681 (2019/04/03)
An enantioselective Friedel–Crafts alkylation reaction of pyrroles and indoles with N-unprotected trifluoromethyl ketimines by use of chiral phosphoric acid provided α-trifluoromethylated primary amines bearing chiral tetrasubstituted carbon centers in high yields and with high to excellent enantioselectivities. The present reaction is unique to N-unprotected trifluoromethyl ketimines. No reaction took place with N-p-methoxyphenyl (PMP)-substituted ketimine. Corresponding α-trifluoromethylated amines were transformed without loss of enantioselectivity.
Unprecedented catalytic asymmetric reduction of N-H imines
Gosselin, Francis,O'Shea, Paul D.,Roy, Stephanie,Reamer, Robert A.,Chen, Cheng-Yi,Volante, Ralph P.
, p. 355 - 358 (2007/10/03)
(Chemical Equation Presented) Addition of lithium bis(trimethylsilyl)amide to perfluorinated ketones 1a-j affords (E)-N-TMS-ketimines 2a-j that are reduced in situ to afford racemic perfluoromethylated amine hydrochloride salts 3a-j in 54-97% yields. Solv