小川君、岩間君の論文がChem.Commun.誌に掲載決定!

(96) A heavy-metal-free desulfonylative Giese-type reaction of benzothiazole sulfones under visible-light conditions
Tetsuya Sengoku, Daichi Ogawa, Haruka Iwama, Toshiyasu Inuzuka and Hidemi Yoda
Chemical Communications, 202157, 9858–9861. (DOI: 10.1039/D1CC03833H) 

A heavy-metal-free desulfonylative Giese-type reaction has been achieved by using Hantzsch ester as a photoreductant under blue light.

牧野君、飯島さんの論文がBeilsteinJOC誌に掲載決定!

(95) Bifurcated synthesis of methylene-lactone- and methylene-lactam-fused spirolactams via electrophilic amide allylation of γ-phenylthio-functionalized γ-lactams
Tetsuya Sengoku, Koki Makino, Ayumi Iijima, Toshiyasu Inuzuka and Hidemi Yoda
Beilstein Journal of Organic Chemistry,  2020, 16, 2769–2775. (DOI: 10.3762/bjoc.16.227) 

New synthetic methods for spirolactams bearing an α-methylene-γ-butyrolactone or its analogous methylene-lactam have been developed.

三好さん、津田さんの論文がTetrahedron誌に掲載決定!

(94) 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!

(93) 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%.