Asymmetric Conjugate Addition of Thiols to a 3-(2-Alkenoyl)-2-oxazolidinone Catalyzed by the DBFOX/Ph Aqua Complex of Nickel(II) Perchlorate

Enantioselective conjugate additions of

Enantioselective conjugate additions of aldoximes to 3-crotonoyl-2-oxazolidinone and 1-crotonoyl-3-phenyl-2-imidazolidinone catalyzed by the aqua complex between R,R-DBFOX/Ph and zinc(II) perchlorate

✍ Kimitaka Nakama; Sumito Seki; Shuji Kanemasa 📂 Article 📅 2002 🏛 Elsevier Science 🌐 French ⚖ 232 KB

Conjugate addition reactions of aldoximes to 3-crotonoyl-2-oxazolidinone and to 1-crotonoyl-3-phenyl-2-imidazolidinone are accelerated in the presence of a catalytic amount of Lewis acids. Among the chiral metal complexes with DBFOX/Ph, BOX/Bu-t, BOX/Ph, BOX/o-OHBn, Pybox, or TADDOL ligands, the mos

ChemInform Abstract: Enantioselective Co

ChemInform Abstract: Enantioselective Conjugate Additions of Aldoximes to 3-Crotonoyl-2-oxazolidinone and 1-Crotonoyl-3-phenyl-2-imidazolidinone Catalyzed by the Aqua Complex Between R,R-DBFOX/Ph and Zinc(II) Perchlorate.

✍ Kimitaka Nakama; Sumito Seki; Shuji Kanemasa 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 32 KB

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v

ChemInform Abstract: Asymmetric Conjugat

ChemInform Abstract: Asymmetric Conjugate Addition of Diethylzinc to Chalcone Catalyzed by Nickel Complexes Containing Derivatives of (1R,2S,3R)-3-Mercaptocamphan-2-ol.

✍ Yingwu Yin; Xingshu Li; Dong-Sheng Lee; Teng-Kuei Yang 📂 Article 📅 2001 🏛 John Wiley and Sons ⚖ 28 KB 👁 1 views

ChemInform Abstract: Bisoxazoline and Bi

ChemInform Abstract: Bisoxazoline and Bioxazoline Chiral Ligands Bearing 4-Diphenylmethyl Shielding Substituents. Diels—Alder Reaction of Cyclopentadiene with 3-Acryloyl-2-oxazolidinone Catalyzed by the Aqua Nickel(II) Complex.

✍ Shuji Kanemasa; Kenji Adachi; Hidetoshi Yamamoto; Eiji Wada 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 30 KB 👁 1 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v

Highly Endo- and Enantioselective Asymme

Highly Endo- and Enantioselective Asymmetric Nitrone Cycloadditions Catalyzed by the Aqua Complex of 4,6-Dibenzofurandiyl-2,2‘-bis(4-phenyl- oxazoline)−Nickel(II) Perchlorate. Transition Structure Based on Dramatic Effect of MS 4A on Selectivities

✍ Kanemasa, Shuji; Oderaotoshi, Yoji; Tanaka, Junji; Wada, Eiji 📂 Article 📅 1998 🏛 American Chemical Society 🌐 English ⚖ 76 KB

ChemInform Abstract: Highly Endo- and En

ChemInform Abstract: Highly Endo- and Enantioselective Asymmetric Nitrone Cycloadditions Catalyzed by the Aqua Complex of 4,6-Dibenzofurandiyl-2,2′-bis(4-phenyloxazoline)—Nickel(II) Perchlorate. Transition Structure Based on Dramatic Effect of MS 4A on Selectivities.

✍ Shuji Kanemasa; Yoji Oderaotoshi; Junji Tanaka; Eiji Wada 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 37 KB 👁 2 views

Highly Endo-and Enantioselective Asymmetric Nitrone Cycloadditions Catalyzed by the Aqua Complex of 4,6-Dibenzofurandiyl-2,2'bis(4-phenyloxazoline)-Nickel(II) Perchlorate. Transition Structure Based on Dramatic Effect of MS 4A on Selectivities. -The aqua complex derived from the chiral ligand and N