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.Synthetic Route of C20H12Br2O2.Yokota, Kazuaki; Kakuchi, Toyoji; Yamamoto, Toshiya; Hasegawa, Toshiyuki; Haba, Osamu published the article 《Asymmetric induction arising from the chiral twist of 2,2′-binaphthyl template in the cyclopolymerization of divinyl ethers》 about this compound( cas:119707-74-3 ) in Makromolekulare Chemie. Keywords: cationic cyclopolymn vinyl ether binaphthyl; chiral twist cyclopolymn binaphthyl vinyl; polymerization cyclo vinyl ether binaphthyl; template cyclopolymn asym induction. Let’s learn more about this compound (cas:119707-74-3).
Cationic cyclopolymn. of divinyl ethers, which were derived from (R)- or (S)-1,1′-bi-2-naphthol with Me, Ph, and bromo groups in the 3,3′-positions, yielded polymers with changing optical rotation according to the reaction conditions. Model compounds corresponding to the 3 stereoisomeric forms of the constitutional units, i.e., 2 racemic (R,R- and S,S-) forms and 1 meso form, were prepared to confirm the origin of changing optical rotation due to the configuration, which had a tendency to be preferentially a racemic-diisotactic structure at higher monomer concentrations and in less polar solvents. The chiral twist of the (R)- or (S)-binaphthyl template induced the main chain to form an asym. R,R- or S,S-racemic sequence, resp., in the cyclopolymn.
The article 《Asymmetric induction arising from the chiral twist of 2,2′-binaphthyl template in the cyclopolymerization of divinyl ethers》 also mentions many details about this compound(119707-74-3)Synthetic Route of C20H12Br2O2, you can pay attention to it, because details determine success or failure
Reference:
Bromide – Wikipedia,
bromide – Wiktionary