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Evidence for movement in the derivation of relative clauses in Japanese
- Hisashi Morita
Chiral Brønsted acid-catalyzed inverse electron-demand aza Diels-Alder reaction.
- T. Akiyama, Hisashi Morita, K. Fuchibe
- Chemistry, Medicine
- Journal of the American Chemical Society
- 20 September 2006
Inverse electron-demand aza Diels-Alder reaction of aldimine with enol ethers proceeded under the influence of a phosphoric acid diester, derived from (R)-BINOL, to give tetrahydroquinoline… Expand
Chiral Brønsted acid catalyzed enantioselective hydrophosphonylation of imines: asymmetric synthesis of alpha-amino phosphonates.
[reaction: see text] A cyclic phosphoric acid derivative, derived from (R)-BINOL, was used as a chiral Brønsted acid (10 mol %) in hydrophosphonylation of aldimines with diisopropyl phosphite at room… Expand
Enantioselective Mannich-type reaction catalyzed by a chiral bronsted acid derived from TADDOL
A novel cyclic dialkyl phosphate was synthesized starting from (+)-diethyl tartrate. Its catalytic activity as a chiral Bronsted acid has been examined in the Mannich-type reaction of a ketene silyl… Expand
Enantioselective Aza-Diels-Alder Reaction Catalyzed by a Chiral Brønsted Acid: Effect of the Additive on the Enantioselectivity
Danishefsky's diene and aldimine underwent aza Diels-Alder reaction under the influence of chiral phosphoric acid derived from (R)-BINOL as a chiral Bronsted acid to afford piperidinone derivatives… Expand
Chiral Brønsted acid-catalyzed hydrophosphonylation of imines―DFT study on the effect of substituents of phosphoric acid
- T. Akiyama, Hisashi Morita, Prabhakar Bachu, K. Mori, M. Yamanaka, Takashi Hirata
- 27 June 2009
The enantioselective hydrophosphonylation reaction of diisopropyl phosphite with aldimine furnished α-amino phosphonates with high enantioselectivities by means of a chiral phosphoric acid. DFT… Expand
Brønsted Acid Catalyzed Aza-Diels-Alder Reaction
Chiral Broensted Acid Catalyzed Enantioselective Hydrophosphonylation of Imines: Asymmetric Synthesis of α-Amino Phosphonates.
Chiral Broensted Acid Catalyzed Inverse Electron‐Demand Aza Diels—Alder Reaction.