Simple quinine as an organocatalyst mediates the addition of various naphthols to halogenated quinones to afford non‐C2‐symmetrical, axially chiral biaryl products, which are promising compounds as chiral ligands and organocatalysts. The rotational barrier required to have two distinct atropisomers has been evaluated in the products generated from the addition of naphthols to various quinones by means
There are provided a compound containing a phenolic hydroxyl group, which exhibits excellent heat resistance and excellent flame retardancy in terms of a cured product thereof, a phenolic resin including the same, a curable composition and a cured product thereof, a semiconductor sealing material, and a printed circuit board. The compound containing a phenolic hydroxyl group has a molecular structure represented by the following General Formula (I):
wherein X is a structural site represented by the following Structural Formula (x1) or (x2);
wherein, in Formula (x1) or (x2), k is an integer of 1 to 3, m is 1 or 2, Ar is a structural site represented by the following Structural Formula (Ar1), and in a case where when k or m is 2 or greater, a plurality of Ar's may be the same as or different from each other;
wherein r is 1 or 2.
Sartori, Giovanni; Maggi, Raimondo; Bigi, Franca, Journal of the Chemical Society. Perkin transactions I, 1993, # 1, p. 39 - 42
作者:Sartori, Giovanni、Maggi, Raimondo、Bigi, Franca、Arienti, Attilio、Casnati, Giuseppe
DOI:——
日期:——
Arienti, Attilio; Bigi, Franca; Maggi, Raimondo, Journal of the Chemical Society. Perkin transactions I, 1997, # 9, p. 1391 - 1393