38940-37-3Relevant academic research and scientific papers
Synthesis of oxygenated 1-arylnaphthalenes
Chang, Meng-Yang,Huang, Yi-Hsuan,Wang, Heui-Sin
, p. 1888 - 1895 (2016)
BF3·OEt2-mediated a one-pot tandem benzannulation of 4-alkynols 5 with oxygenated benzenes 4 affords 1-arylnaphthalenes 6 in good yields. The key synthetic route combines a facile double Friedel–Crafts electrophilic cyclization of 4-
Synthesis of substituted phenanthrofurans
Chan, Chieh-Kai,Chen, Yi-Chia,Chen, Yeh-Long,Chang, Meng-Yang
, p. 9187 - 9195 (2015/11/27)
A three-step protocol toward phenanthrofurans 1 starting with deoxybenzoins 3 is developed with moderate to good yield. A facile process is carried out for the (1) α-propargylation of 3 with NaH and propargyl bromide 2 in refluxing THF, (2) Bi(OTf)3-mediated cycloisomerization of γ-ynones 4 with 4 ? molecular sieves in MeNO2 at rt, and (3) photolytic Scholl annulation of 2,3-diarylfurans 5 with I2 in EtOAc at rt. The key structures of 1 are confirmed by X-ray crystallographic analysis.
In(OTf)3-mediated synthesis of substituted pyridazines
Chang, Meng-Yang,Lu, Yi-Ju,Cheng, Yu-Chieh
, p. 6840 - 6845 (2015/08/24)
In(OTf)3 (4c)-mediated one-pot (4+2) cyclocondensation of γ-alkynones 3 with N2H4(aq) in dioxane affords substituted pyridazines 5 in good yields via a sequential desulfonative or dehydrogenative aromatization. The facile
Ascorbic Acid Promoted Oxidative Arylation of Vinyl Arenes to 2-Aryl Acetophenones without Irradiation at Room Temperature under Aerobic Conditions
Majhi, Biju,Kundu, Debasish,Ranu, Brindaban C.
, p. 7739 - 7745 (2015/08/18)
A convenient and general protocol for oxidative arylation of vinyl arenes by aryl radicals generated in situ from arene diazonium fluoroborates promoted by ascorbic acid in air at room temperature has been developed in the absence of any additive and visible light irradiation. A series of diversely substituted 2-aryl acetophenones have been obtained in good yields by this procedure.
On the π-π interaction in the benzylation of ketones
Diez-Barra, Enrique,Merino, Sonia,Sanchez-Verdu, Prado,Torres, Jose
, p. 11437 - 11448 (2007/10/03)
The benzylation of a set of nine ketones provides enough information to establish how the ketone structure affects the existence of a π-π interaction. The presence of a phenyl moiety starting from the a-carbon atom and flexibility in cyclic ketones are st
