18385-84-7Relevant articles and documents
Synthesis of pterocarpans through palladium-catalyzed oxyarylation of alkoxy-2H-chromenes with o-iodophenols
Gaspar, Francisco V.,Barcellos, Julio C.F.,Cívicos, José F.,Merino, Pedro,Nájera, Carmen,Costa, Paulo R.R.
, (2020/10/22)
The oxyarylation of alkoxy-2H-chromenes (1a-e) with o-iodophenols substituted by electron-withdrawing (CHO) and electron-donating (OMe) groups is studied under two experimental conditions: a) Pd(OAc)2, Ag2CO3 in PEG-400 at 140 °C, 10 min and b) oxime-based palladacycle, DIPEA, in PEG-400 at 150 °C, 3–4 h. Pterocarpans are obtained in moderate to good chemical yields.
A novel solid-phase synthesis of 2H-chromenes
Tang,Zhao, Yinjiao,Zhang, Meng,Dai, Xin,Wang, Weilin,Mao, Deshou
, p. 708 - 719 (2016/05/09)
A method for synthesizing substituted 2H-chromenes using TMSOTf-catalyzed polystyrene-supported succinimidyl selenide-induced intramolecular seleno-arylation of tethered alkenes as a key step has been developed. The catalytic process provides an efficient
Indium-catalyzed intramolecular hydroarylation of aryl propargyl ethers
Alonso-Maran, Lorena,Martnez, M. Montserrat,Sarandeses, Luis A.,Sestelo, Jos Prez
, p. 379 - 387 (2015/02/02)
Indium(iii) halides catalyze efficiently the intramolecular hydroarylation (IMHA) of aryl propargyl ethers. The reaction proceeds regioselectively with terminal and internal alkynes bearing electron-rich and electron-deficient substituents in the benzenes
