4214-39-5Relevant academic research and scientific papers
Direct Observation of Aryl Gold(I) Carbenes that Undergo Cyclopropanation, C?H Insertion, and Dimerization Reactions
García-Morales, Cristina,Pei, Xiao-Li,Sarria Toro, Juan M.,Echavarren, Antonio M.
, p. 3957 - 3961 (2019/02/19)
Mesityl gold(I) carbenes lacking heteroatom stabilization or shielding ancillary ligands have been generated and spectroscopically characterized from chloro(mesityl)methylgold(I) carbenoids bearing JohnPhos-type ligands by chloride abstraction with GaCl3. The aryl carbenes react with PPh3 and alkenes to give stable phosphonium ylides and cyclopropanes, respectively. Oxidation with pyridine N-oxide and intermolecular C?H insertion to cyclohexane have also been observed. In the absence of nucleophiles, a bimolecular reaction, similar to that observed for other metal carbenes, leads to a symmetrical alkene.
McMurry coupling of aryl aldehydes and imino pinacol coupling mediated by Ti(O-i-Pr)4/Me3SiCl/Mg reagent
Okamoto, Sentaro,He, Jing-Qian,Ohno, Chihaya,Oh-iwa, Yuhji,Kawaguchi, Yuhki
experimental part, p. 387 - 390 (2010/03/03)
Ti(O-i-Pr)4/Me3SiCl/Mg reagent mediated McMurry coupling of aryl aldehydes to biaryl olefins at near room temperature. This low valent titanium (LVT) reagent also mediated the coupling of aldimines to 1,2-diamines (imino pinacol coupling).
A convenient method for the generation of a disulfur monoxide equivalent and its reaction with diazoalkanes to yield dithiirane 1-oxides
Ishii, Akihiko,Kawai, Tetsuhiko,Tekura, Kentaro,Oshida, Hideaki,Nakayama, Juzo
, p. 1924 - 1926 (2007/10/03)
Oxidation of elemental sulfur (S8) with dimethyldioxirane (or CF3CO3H) generates a disulfur monoxide equivalent ("S2O"). Yields of "S2O" of 30-40% are obtained from equimolar amounts of S8 and an oxidizing agent. "S2O" reacts with diazoalkanes to give dithiirane 1-oxides [Eq. (1)].
Laser flash photolysis study of phenylcarbene, o-tolylcarbene and mesitylcarbene
Admasu, Atnaf,Platz, Matthew S.,Marcinek, Andrzej,Michalak, Jacek,Gudmundsdottir, Anna Dora,Gebicki, Jerzy
, p. 207 - 220 (2007/10/03)
Laser flash photolysis (LFP, XeCl, 308 nm, 20 ns) of phenyldiazomethane (PDM), o-tolydiazomethane (TDM) and mesitydiazomethane (MDM) produces phenylcarbene (PC), o-tolycarbene (TC) and mesitylcarbene (MSC), respectively. Transient spectra of PC and TC cou
Aromatic stabilization of the triarylborirene ring system by tricoordinate boron and facile ring opening with tetracoordinate boron
Eisch, John J.,Shafii, Babak,Odom, Jerome D.,Rheingold, Arnold L.
, p. 1847 - 1853 (2007/10/02)
To remove uncertainties in the apparent C=C and B-C bond lengths of the borirene ring, as previously estimated from an X-ray crystallographic analysis of trimesitylborirene, the unsymmetrically substituted 2-(2,6-dimethylphenyl)-1,3-dimesitylborirene was
Thioaldehyde S-Oxide (Monosubstituted Sulfines) from Thioacylsilane S-Oxides. Synthesis and Fluorine- and Acid-Induced Z/E Isomerization. 2
Barbaro, G.,Battaglia, A.,Giorgianni, P.,Bonini, B. F.,Maccagnani, G.,Zani, P.
, p. 3744 - 3748 (2007/10/02)
Aromatic and aliphatic, not enethiolizable, thioaldehyde S-oxides (monosubstituted sulfines) are obtained from stereospecific fluorodesilylation of the corresponding thioacylsilane S-oxides with retention of configuration.A detailed investigation on the mechanism of the desilylation, as well as of the acid and fluoride ion induced Z/E interconversion has been performed.
RHODIUM ION CATALYZED DECOMPOSITION OF ARYLDIAZOALKANES
Shankar, B.K. Ravi,Shechter, Harold
, p. 2277 - 2280 (2007/10/02)
Aryldiazomethanes are converted by rhodium(II)acetate and iodorhodium(III) tetraphenylporphyrin to cis- rather than trans-1,2-diarylethylenes.Secondary aryldiazoalkanes react with rhodium(II) acetate to give azines.
