The important role of 119707-74-3

After consulting a lot of data, we found that this compound(119707-74-3)Electric Literature of C20H12Br2O2 can be used in many types of reactions. And in most cases, this compound has more advantages.

Electric Literature of C20H12Br2O2. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: (S)-3,3′-Dibromo-1,1′-bi-2-naphthol, is researched, Molecular C20H12Br2O2, CAS is 119707-74-3, about Copper-Complex-Catalyzed Asymmetric Aerobic Oxidative Cross Coupling of 2-Naphthols: Enantioselective Synthesis of 3,3′-Substituted C1-Symmetric BINOLs. Author is Tian, Jin-Miao; Wang, Ai-Fang; Yang, Ju-Song; Zhao, Xiao-Jing; Tu, Yong-Qiang; Zhang, Shu-Yu; Chen, Zhi-Min.

A novel chiral 1,5-N,N-bidentate ligand I based on a spirocyclic pyrrolidine oxazoline backbone was designed and prepared; it coordinates CuBr in situ to form an unprecedented catalyst that enables efficient oxidative cross-coupling of 2-naphthols II (R3 = CHO, PhOCO, 3-FC6H4OCO, CHO, etc., R4 = H; R3 = PhOCO, R4 = Me, Br, OMe) and III (R5 = Br, Cl, CHO, PhCH2O, etc., R6 = H; R5 = H, R6 = OMe). Air serves as an external oxidant and generates a series of C1-sym. chiral BINOL derivatives IV with high enantioselectivity (up to 99% ee) and good yield (up to 87%). This approach is tolerant of a broader substrates scope, particularly substrates bearing various 3- and 3′-substituents. A preliminary investigation using one of the obtained C1-sym. BINOL product IV (R3 = CHO; R4 = R6 = H; R5 = Br) as an organocatalyst exhibited better enantioselectivity than the previously reported organocatalyst for the asym. α-alkylation of di-Et 2-aminomalonate.

After consulting a lot of data, we found that this compound(119707-74-3)Electric Literature of C20H12Br2O2 can be used in many types of reactions. And in most cases, this compound has more advantages.

Reference:
Bromide – Wikipedia,
bromide – Wiktionary