Miyauchi, Yuta’s team published research in Organic Letters in 2012-12-07 | 139139-86-9

Organic Letters published new progress about [4+2] Cycloaddition reaction (stereoselective). 139139-86-9 belongs to class chiral-phosphine-ligands, and the molecular formula is C44H40P2, Application In Synthesis of 139139-86-9.

Miyauchi, Yuta; Noguchi, Keiichi; Tanaka, Ken published the artcile< Rhodium-Catalyzed One-Pot Intermolecular [2 + 2 + 2] Trimerization/Asymmetric Intramolecular [4 + 2] Cycloaddition of Two Aryl Ethynyl Ethers and 5-Alkynals>, Application In Synthesis of 139139-86-9, the main research area is rhodium catalyst trimerization asym cycloaddition aryl ethynyl ether alkynal; cyclohexadiene annulated enantioselective regioselective synthesis.

It has been established that a cationic Rh(I)/(R)-H8-BINAP complex catalyzes the one-pot intermol. [2+2+2] trimerization/asym. intramol. [4+2] cycloaddition of two aryl ethynyl ethers and 5-alkynals to produce annulated 1,4-cyclohexadienes possessing two stereogenic centers. E.g., rhodium-catalyzed reaction of 2-(ethynyloxy)naphthalene and MeCCCH2NTsCH2CHO gave 64% annulated 1,4-cyclohexadiene derivative (I).

Organic Letters published new progress about [4+2] Cycloaddition reaction (stereoselective). 139139-86-9 belongs to class chiral-phosphine-ligands, and the molecular formula is C44H40P2, Application In Synthesis of 139139-86-9.

Referemce:
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate