108055-11-4Relevant articles and documents
Cyclodextrin-mediated regioselective photo-Fries reaction of 1-naphthyl phenyl acylates
Koodanjeri, Smriti,Pradhan, Ajit R.,Kaanumalle, Lakshmi S.,Ramamurthy
, p. 3207 - 3210 (2003)
1-Naphthyl phenyl acylates upon irradiation in solution yield eight products via β-cleavage process. However, excitation of these molecules as included in γ-cyclodextrin results in a single product (>95%). This medium dependent product selectivity is attributed to conformational and translational restrictions enforced on the reactant as well as intermediates by the cyclodextrin cavity.
FT-IR, 1H NMR, 13C NMR and X-ray crystallographic structure determination of 4-nitro-benzenesulfonic acid 2,4-bis-(1-phenyl-ethyl)-naphthalen-1-yl ester
Kayalvizhi,Vasuki,Veerareddy,Sreenivasulureddy,Veerabhadrarao
, p. 392 - 395 (2015)
The title compound C32H27NO5S belongs to the monoclinic system, space group P21/c with a = 14.4530(5) ?, b = 13.9185(5) ?, c = 13.5714(4) ?, α = γ = 90°, β = 87.174(3), V = 2726.76(16) ?3, Z = 4, D c = 1.310 g/cm3, F(000) = 1128, R = 0.053 and wR = 0.133, S = 1.03, T = 296 K. In the title compound, the naphthalene unit is planar (r.m.s. deviation = 0.0227 ?). The dihedral angle between the naphthalene unit and nitro-benzenesulfonic acid, 2-phenyl-ethyl and 4-phenyl-ethyl are 49.68(05)°, 82.96(06)°, and 81.94(07)°respectively. The structure is stabilized by intra- and intermolecular C-H...O hydrogen bonds.
Hydroarylation of styrenes with electron-rich arenes over acidic ion-exchange resins
Wen, Jingyun,Qi, Haofei,Kong, Xiangjin,Chen, Ligong,Yan, Xilong
, p. 1893 - 1903 (2014/07/07)
A series of acidic cation-exchange resins were used for the hydroarylation of resorcinol with styrene, in which resin D072 exhibited the excellent catalytic performance in this reaction with 99% conversion of styrene and 90% selectivity of 4-(1-phenylethyl)resorcinol. It was applied to the hydroarylation of various electron-rich arenes with styrenes, and the hydroarylated products were quantitatively obtained. This catalyst could be used for four consecutive runs with slight decrease in activity. The hydroarylation of resorcinol with styrene over resin D072 in a fixed bed was completed effectively with 94% selectivity and 99% conversion, and this green continuous process is potentially applicable to large-scale productions.
Alkali metal ion controlled product selectivity during photorearrangements of 1-naphthyl phenyl acylates and dibenzyl ketones within zeolites
Warrier,Kaanumalle, Lakshmi S.,Ramamurthy
, p. 620 - 631 (2007/10/03)
Photochemical behaviors of 1-naphthyl phenyl acylates and dibenzyl ketones included in zeolites have been compared. 1-Naphthyl phenyl acylates while in solution produce eight photoproducts; within NaY it gives a single product. The selectivity is attributed to the restriction brought on the mobility of the primary radical pair by the alkali metal ions present in zeolites. Photochemistry of dibenzyl ketones within NaY reveals that the intersystem crossing in caged radical pairs could be influenced by the heavy alkali metal ions. Structures of complexes among Li+ ion and the guest 1-naphthyl phenyl acetates and dibenzyl ketone computed at the B3LYP level have been useful to understand the origin of the observed product selectivity within zeolites.
