92497-32-0Relevant academic research and scientific papers
Hf(OTf)4-Catalyzed highly diastereoselective synthesis of 1,3-disubstituted tetralin derivatives via benzylic C(sp3)-H bond functionalization
Yoshida, Taira,Mori, Keiji
supporting information, p. 4319 - 4322 (2017/04/21)
We report a highly diastereoselective synthesis of 1,3-disubstituted tetralin derivatives via Lewis acid catalyzed benzylic C(sp3)-H bond functionalization. The employment of Hf(OTf)4 as an acid catalyst was crucial in the reaction,
Open-air oxidative Mizoroki-Heck reaction of arylsulfonyl hydrazides with alkenes
Yuen, On Ying,So, Chau Ming,Kwong, Fuk Yee
, p. 27584 - 27589 (2016/03/30)
A palladium(ii)-catalyzed oxidative Mizoroki-Heck reaction of arylsulfonyl hydrazides with alkenes was developed employing atmospheric air as the sole oxidant in an open-vessel manner. By using palladium(ii) acetate associating with inexpensive, air-stable and moisture stable pyridine ligand L9 as the catalyst system, the efficiency of the reaction could be significantly enhanced. A wide range of arylsulfonyl hydrazides underwent the oxidative Mizoroki-Heck reaction with alkenes smoothly. Good-to-excellent product yields and excellent regio- and stereoselectivity were achieved. Functional groups such as halo, ester etc. were well-tolerated under these optimized reaction conditions.
Iminophosphine palladium(II) complexes: Synthesis, characterization, and application in Heck cross-coupling reaction of aryl bromides
Yilmaz, Mustafa Kemal,Guezel, Bilgehan
, p. 529 - 536 (2014/07/07)
Palladium(II) complexes containing phosphorus and nitrogen donor atoms (iminophosphine), dichlorido{N-[2-(diphenylphosphino)benzylidene]-2- trifluoromethylaniline}palladium(II) 1, dichlorido{N-[2-(diphenylphosphino) benzylidene]-3-trifluoromethylaniline}palladium(II) 2, dichlorido{N-[2- (diphenylphosphino)benzylidene]-2-methylaniline}palladium(II) 3, dichlorido{N-[2-(diphenylphosphino)benzylidene]-3-methylaniline}palladium(II) 4 have been successfully synthesized and fully characterized by FT-IR and NMR (1H, 31P, 19F, and 13C) spectroscopy techniques. These complexes were first step tested in the reaction of bromobenzene and styrene to determine the optimal coupling reaction conditions and then successfully applied as catalysts for Heck cross-coupling reactions of activated and deactivated aryl bromides with styrene derivatives and several acrylates. Copyright
Catalytic enantioselective C(sp3)H functionalization: Intramolecular benzylic [1,5]-hydride shift
Yu, Jie,Li, Nan,Chen, Dian-Feng,Luo, Shi-Wei
supporting information, p. 2859 - 2864 (2014/05/06)
The catalytic asymmetric [1,5]-hydride transfer/cyclization sequence involving benzylic C(sp3)H bond was established, providing tetrahydronaphthalene derivatives in moderate to high yield with up to 69% ee, by employing the copper complex of si
Photochemistry of o-pyrrolylstilbenes and formation of spiro-2H-pyrroles and their rearrangement to dihydroindoles
Basaric, Nikola,Marinic, Zeljko,Sindler-Kulyk, Marija
, p. 9382 - 9392 (2007/10/03)
(Chemical Equation Presented) Excited states of stilbenylpyrroles 1a-1c deactivate by two photochemical processes: cis-trans-isomerization and hydrogen transfer of NH to the stilbene double bond. NH-transfer results in the formation of two quinone dimetha
