三好さん、津田さんの論文がTetrahedron誌に掲載決定!

Development of new catalytic enantioselective formation of methylenelactam-based N,O-spirocyclic compounds via ring opening-asymmetric reclosure of hydroxylactams
Tetsuya Sengoku, Ayako Miyoshi, Tamaki Tsuda, Toshiyasu Inuzuka, Masami Sakamoto, Masaki Takahashi and Hidemi Yoda
Tetrahedron,  2020, 76, 131252. (DOI: 10.1016/j.tet.2020.131252) 

Hydroxylactams prepared from N-carbonyl phthalimides and β-amido functionalized allylboronates underwent ring opening-asymmetric reclosure in the presence of catalytic amounts of MgBr2 and a chiral aminophenol to afford the corresponding N,O-spirocyclic compounds in excellent yields and high enantioselectivities.

前川君、今村君、和田君の論文がAdv. Synth. & Catal.誌に掲載決定!

Zinc Hydroxide‐Catalyzed Asymmetric Allylation of Acetophenones with Amido‐Functionalized Allylboronate in Water
Tetsuya Sengoku, Ryunosuke Maegawa, Hiroki Imamura, Mitsuo Wada and Hidemi Yoda
Advanced Synthesis & Catalysis, 2020362, 2397-2418. (DOI: 10.1002/adsc.202000195)

Enantioselective reaction of water‐stable amido‐functionalized allylboronates with acetophenone derivatives in water is reported. The reaction was catalyzed with zinc hydroxide and a didecylamino‐functionalized chiral aminophenol reagent, affording a variety of homoallylic alcohols in up to 99% yield. The enantiomeric excess of the product reached up to 98%.

白井さん、高野さんの論文がJOC誌に掲載決定!

Divergent synthesis of methylene lactone- and methylene lactam-based spiro compounds; Utility of amido-functionalized γ-hydroxylactam as a precursor for cytotoxic N,O– and N,N-spiro compounds
Tetsuya Sengoku, Anna Shirai, Ayaka Takano, Toshiyasu Inuzuka, Masami Sakamoto, Masaki Takahashi and Hidemi Yoda
The Journal of Organic Chemistry,  201984, 12532-12541. (DOI: 10.1021/acs.joc.9b02038)

Pharmaceutically attractive methylene lactone- and methylene lactam-based spiro compounds have been synthesized by employing amido-functionalized γ-hydroxylactam as a common intermediate.

池田君、阿井君の論文がOrganic & Biomolecular Chemistry誌に掲載決定!

Indium− and zinc−catalyzed enantioselective amide propargylation of aldehydes with stannylated allenyl amides
Tetsuya Sengoku, Ikuhei Ikeda, Keisuke Ai, Masaki Takahashi and Hidemi Yoda
Organic & Biomolecular Chemistry, 201917, 2614-2618. (DOI: 10.1039/C9OB00040B)

A highly enantioselective allylation of aldehydes with newly prepared stannyl allenyl amides has been achieved using catalytic amounts of InCl3, ZnCl2 and a BINOL derivative.

永井君の論文がSynlett誌に掲載決定!

New synthetic methodology toward azaspiro-γ-lactones via oxidative C-H spirocyclization reaction
Tetsuya Sengoku, Yuichiro Nagai, Toshiyasu Inuzuka and Hidemi Yoda
Synlett, 2019, 30, 199-202. (DOI: 10.1055/s-0037-1611941)

The key C–H spirolactonization was accomplished by employing iodobenzene diacetate and potassium bromide to afford a variety of azaspiro-γ-lactones in high yields. 

Journal Information: Impact factor 2.369 (Q2, JCR 2017)