22422-23-7Relevant articles and documents
Silver-Catalyzed Carbon Dioxide Fixation on Alkynylindenes
Chuang, Po-Yao,Okumura, Akira,Saito, Kodai,Yamada, Tohru
supporting information, (2020/11/13)
The synthesis of polycyclic indene derivatives via silver-catalyzed carbon dioxide fixation on 2-alkynylindene derivatives was achieved by nucleophilic addition of the indenyl anion to carbon dioxide involving carbon-carbon bond formation and subsequent intramolecular cyclization to the alkyne part activated by a silver catalyst. This cascade process could be applied to various substrates to obtain the corresponding products in high yields. The endo/exo selectivity of the cyclization could be controlled by the steric or electronic effect of the substituents on the substrates, and 6-endo-selective cyclization was realized to afford α-pyrone-fused indenes.
METALLOCENE COMPLEX AND OLEFIN POLYMERIZATION METHOD
-
Paragraph 0147; 0254, (2015/11/03)
Provided are a metallocene complex that facilitates copolymerization of olefin monomers including propylene at a higher uptake rate of comonomers, i.e., ethylene and α-olefin, manufacture of a rubber component having a higher molecular weight, and manufac
Regioselectivity of acid-catalyzed cyclization of 1-(3,4-dialkylaryl)-3- chloropropan-1-ones to indanones. Comparison of experimental data and results of computer simulation
Ivchenko,Nifant'Ev,Ustynyuk,Ezerskii
experimental part, p. 929 - 935 (2010/10/04)
The acid-catalyzed cyclization of 1-(3,4-dialkylaryl)-3-chloropropan-1-ones to dialkyl-indanones via the intermediate formation of (3,4-dialkylaryl) propenones was studied. This reaction affords isomeric products: 5,6-dialkylindan-1-ones and 4,5-dialkylin