69124-24-9Relevant academic research and scientific papers
Complex Boron-Containing Molecules through a 1,2-Metalate Rearrangement/anti-SN2′ Elimination/Cycloaddition Reaction Sequence
Tillin, Chloe,Bigler, Raphael,Calo-Lapido, Renata,Collins, Beatrice S.L.,Noble, Adam,Aggarwal, Varinder K.
, p. 449 - 453 (2019/02/26)
The three-component coupling of benzylamines, boronic esters, and 4-phenyl-3 H -1,2,4-triazole-3,5(4 H)-dione (PTAD) is reported. The boronate complex formed from an ortho -lithiated benzylamine and a boronic ester undergoes a stereospecific 1,2-metalate rearrangement/ anti -S N 2′ elimination in the presence of an N-activator to provide a dearomatized tertiary boronic ester. Interception of this dearomatized intermediate with a dienophile leads to stereopredictable cycloaddition reactions to generate highly complex three-dimensional boron-containing molecular structures. When enantioenriched α-methyl-substituted benzylamines are employed, the corresponding cycloaddition adducts are formed with excellent enantiospecificities.
Stereochemical Features of the condensation of lithiated (S)-N,N-dimethyl-1-phenylethylamine with o-methoxybenzophenones
Dem'yanovich,Shishkina,Gritsyuk,Potekhin,Chesnova,Ashkinadze
, p. 556 - 559 (2007/10/03)
The condensation of lithiated (S)-N,N-dimethyl-1-phenylethylamine with o-methoxybenzophenones occurs in a nonstereoselective fashion due to possible coordination of lithium not only at the carbonyl group but also at the oxygen atom of the ortho-methoxy gr
Stereochemical Aspects of Enantiopure and Racemic Organolithium Aggregates Li4Ar4 {Ar = C6H4[CH(M)NM2]-2}
Kronenburg, Claudia M. P.,Rijnberg, Evelien,Jastrzebski, Johann T. B. H.,Kooijman, Huub,Spek, Anthony L.,Koten, Gerard van
, p. 153 - 159 (2007/10/03)
The compounds (R)- and rac-[1-(dimethylamino)ethyl]benzene, (R)-1 and rac-1, respectively, react quantitatively with tBuLi in a 1:1 molar ratio in pentane to give the corresponding (R)- and rac-{Li4[C6H4(CH(Me)NMe2)-2]4} (R)-2 and rac-2, respectively. The
Organotin(IV) compounds 2-(Me2NCHR)C6H4(SnR'R''Br) with a fixed s-cis arrangement of the chiral carbon and tin centers. Crystal structure of 2-(Me2NCHBut)C6H4SnMePhBr
Jastrzebski, Johann T. B. H.,Boersma, Jaap,Koten, Gerard van
, p. 43 - 53 (2007/10/02)
A series of novel pentacoordinate triorganotin bromides SnR'R''Br have been synthesized and characterized in which R is H, Me, Et, i-Pr or t-Bu.The crystal structure of one of these compounds (R = t-Bu, R' = Me and R'' = Ph) has been dete
