534619-14-2Relevant academic research and scientific papers
Highly efficient Ru(ii)-alkylidene based Hoveyda-Grubbs catalysts for ring-closing metathesis reactions
Al-Awadi, Nouria A.,Al-Enezi, Mariam Y.,Ibrahim, Yehia A.,John, Elizabeth
, p. 37866 - 37876 (2021/12/09)
Three novel phosphine-free Ru-alkylidenes (7a-7c) have been synthesized and utilized as efficient catalysts for ring closing metathesis (RCM) reaction. Spectroscopic data, i.e. NMR and HRMS, along with single crystal X-ray diffraction analysis, were used
Direct use of allylic alcohols for platinum-catalyzed monoallylation of amines
Utsunomiya, Masaru,Miyamoto, Yoshiki,Lpposhi, Junji,Ohshima, Takashi,Mashima, Kazushi
, p. 3371 - 3374 (2008/02/12)
A new direct catalytic amination of allylic alcohols promoted by the combination of platinum and a large bite-angle ligand DPEphos was developed in which the allylic alcohol was effectively converted to a π-allylplatinum intermediate without the use of an activating reagent. The use of the DPEphos ligand was essential for obtaining high catalyst activity and high monoallylation selectivity of primary amines, allowing the formation of a variety of monoallylation products in good to excellent yield.
Naphthalene-1,8-diylbis(diphenylmethylium) as an organic two-electron oxidant: Benzidine synthesis via oxidative self-coupling of N,N-dialkylanilines
Saitoh, Terunobu,Yoshida, Suguru,Ichikawa, Junji
, p. 6414 - 6419 (2007/10/03)
Naphthalene-1,8-diylbis(diphenylmethylium) exhibits a unique electron-transfer reduction behavior due to the close proximity of the two triarylmethyl cations, which form a C-C bond while accepting two electrons, leading to 1,1,2,2-tetraphenylacenaphthene. The preparation of the dication was readily accomplished under anhydrous conditions starting from a cyclic bis(triarylmethyl) ether, derived from 1,8-dibromonaphthalene. The process proceeded via deoxygenation accompanying the formation of a disiloxane on treatment with a silylating agent (Me3SiClO4 or Me 3SiOTf) in 1,1,1,3,3,3-hexafluoropropan-2-ol. The dication was successfully employed for oxidative coupling of N,N-dialkylanilines at the paraposition to afford the corresponding benzidines in good to excellent yield.
1,8-Bis(diphenylmethylium)naphthalenediyl dication as an organic oxidant: Synthesis of benzidines via self-coupling of N,N-Dialkylanilines
Saitoh, Terunobu,Yoshida, Suguru,Ichikawa, Junji
, p. 4563 - 4565 (2007/10/03)
(Chemical equation presented) 1,8-Bis(diphenylmethylium)naphthalenediyl dications promoted oxidative coupling of various N,N-dialkylanilines to afford the corresponding para-coupled bisanilines, benzidines, in good to excellent yield. The dications were readily prepared from a cyclic ether precursor, derived from 1,8-dibromonaphthalene, via deoxygenation with a silylating reagent in 1,1,1,3,3,3-hexafluoro-2-propanol under anhydrous conditions.
