Rhodium-Catalyzed Enantioselective Synthesis, Structures, and Properties of Single and Double Azahelicene-Like Molecules was written by Hanada, Kyoichi;Nogami, Juntaro;Miyamoto, Kazunori;Hayase, Norihiko;Nagashima, Yuki;Tanaka, Yusuke;Muranaka, Atsuya;Uchiyama, Masanobu;Tanaka, Ken. And the article was included in Chemistry – A European Journal in 2021.SDS of cas: 676267-05-3 The following contents are mentioned in the article:
The enantioselective synthesis of aza[6] and [7]helicene-like mols. have been achieved by the cationic rhodium(I)/axially chiral biaryl bisphosphine complex-catalyzed intramol. [2+2+2] cycloaddition of cyanodiynes [e.g., I → (P)-II (optimized at 87%, 62% ee using (R)-xyl-segphos)]. This protocol was successfully applied to the diastereo- and enantioselective synthesis of an S-shaped double aza[6]helicene-like mol. with a high ee value of 89%. Although no epimerization and racemization were observed in the double carbo[6]helicene-like mol. at 80°C, epimerization and racemization of the double aza[6]helicene-like mol. proceeded at 80°C. This double aza[6]helicene-like mol. showed good fluorescent quantum yields and chiroptical responses under both neutral and acidic conditions. This study involved multiple reactions and reactants, such as 2-Bromo-1-iodonaphthalene (cas: 676267-05-3SDS of cas: 676267-05-3).
2-Bromo-1-iodonaphthalene (cas: 676267-05-3) belongs to iodide derivatives. Indole, first isolated in 1866, and it is commonly synthesized from phenylhydrazine and pyruvic acid, although several other procedures have been discovered. Moreover, it is known that it controls biofilm formation. However, the role of indole in the cell has not been fully elucidated.SDS of cas: 676267-05-3
Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com