(87) Use of β-Amido Allylboronate as a Nucleophilic Reagent in Catalytic Amide Allylation of N-Carbonyl Imides
Tetsuya Sengoku, Yuta Kamiya, Ai Kawakami, Masaki Takahashi and Hidemi Yoda
European Journal of Organic Chemistry, 2017, 6096-6098. ()
β-Amido allylboronates showed sufficient nucleophilicity toward imides in the presence of catalytic zinc bromide and basic additives, affording excellent yields of azaspiro-γ-lactones through a ring opening-reclosure process on a gram scale.
Journal Information: Impact factor 2.834 (Q2, JCR 2016)
(86) Use of β-Amido Allylboronate as a Nucleophilic Reagent in Catalytic Enantioselective Addition to Isatins
Tetsuya Sengoku, Akihiro Sugiyama, Yuta Kamiya, Ryunosuke Maegawa, Masaki Takahashi and Hidemi Yoda
European Journal of Organic Chemistry, 2017, 1285-1288. ()
A new catalytic system that enables the enantioselective tin-free “amide allylation” of isatins is developed with the aid of a newly prepared (β-amidoallyl)boronate.
Journal Information: Impact factor 3.068 (Q2, JCR 2015)
(85) Indium-catalysed Amide Allylation of α-Iminoamide: Highly Enantioselective Synthesis of Amide Functionalised α-Methylene-γ-butyrolactams
Tetsuya Sengoku, Kana Kokubo, Masami Sakamoto, Masaki Takahashi and Hidemi Yoda
Organic & Biomolecular Chemistry, 2017, 15, 320-323. (DOI: 10.1039/C6OB02506D)
A highly enantioselective amide allylation of α-iminoamides has been achieved using catalytic amounts of InCl3, ZnCl2 and a BINOL derivative.
Journal Information: Impact factor 3.559 (Q1, JCR 2015)