The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: (S)-3,3′-Dibromo-1,1′-bi-2-naphthol( cas:119707-74-3 ) is researched.Electric Literature of C20H12Br2O2.Chinnaraja, Eswaran; Arunachalam, Rajendran; Pillai, Renjith S.; Peuronen, Anssi; Rissanen, Kari; Subramanian, Palani S. published the article 《One-pot synthesis of [2+2]-helicate-like macrocycle and 2+4-μ4-oxo tetranuclear open frame complexes: Chiroptical properties and asymmetric oxidative coupling of 2-naphthols》 about this compound( cas:119707-74-3 ) in Applied Organometallic Chemistry. Keywords: one pot helicate macrocycle tetranuclear open frame copper complex; chiroptical asym oxidative coupling naphthol; binaphthyldiamine methyl diformylphenol copper salt self assembly cyclocondensation. Let’s learn more about this compound (cas:119707-74-3).
Synthesis of binuclear Cu(II) terminally closed [2+2]-double-stranded helicate-like macrocycles 1,1′,1”,2,2′,2” and 2+4-μ4-oxo tetranuclear open frame complexes 3,3′,3”,4,4′,4” are established. Adapting one-pot self-assembly technique from simple three components systems: 1,1′-binaphthyl-2,2′-diamine, 4-methyl-2,6-diformyl phenol and cupric salts, the helicate-like [2+2]- macrocyclic complexes 1-1”, 2-2” and 2+4-μ4-oxo tetranuclear complexes 3-3”, 4-4” were obtained by appropriately altering the reaction condition such as temperature and subcomponent ratio. D. Functional Theory (DFT) calculations were carried out for understanding the structural geometries, intermediates involved in the diverse formation of [2+2] and 2+4 frameworks. The single crystal x-ray structures obtained for 1′, 2 and 3 confirms the self-assembly process in line with DFT. This detailed anal. tempted us to derive a plausible mechanism for this long standing challenge in the synthesis of such macrocycles using 1,1′-binaphthyl-2,2′-diamine (BNDA) and aromatic aldehyde. The chiroptical properties of enantiopure complexes and their catalytic applications in asym. oxidative coupling of 2-naphthol to chiral 1,1′-Bi-2-naphthol (BINOL) achieved in good yield and ee were discussed.
Although many compounds look similar to this compound(119707-74-3)Electric Literature of C20H12Br2O2, numerous studies have shown that this compound(SMILES:OC1=C(Br)C=C2C=CC=CC2=C1C3=C4C=CC=CC4=CC(Br)=C3O), has unique advantages. If you want to know more about similar compounds, you can read my other articles.
Reference:
Bromide – Wikipedia,
bromide – Wiktionary