17095-20-4Relevant academic research and scientific papers
Synthesis and application of benzyl-TMS derivatives as bench stable benzyl anion equivalents
Das, Manas,O'Shea, Donal F.
, p. 6448 - 6460 (2013/07/26)
The regioselective benzylic metalation of toluenes using BuLi/KO tBu/TMP(H) (LiNK metalation conditions) and subsequent transmetalation to Si by reaction with TMSCl provides a general one-pot procedure for the synthesis of substituted benzyltrimethylsilanes. ArCH 2Si(Me)3 derivatives are bench stable reagents yet can serve as benzyl anion equivalents under mild reaction conditions. Following activation with fluoride they can successfully participate in a wide range of additions to both non-enolizable and enolizable carbonyls. In addition, their use in the synthesis of isochromanones and trifluoromethylated amines is illustrated. The broad synthetic scope and mild practical conditions of use for ArCH2Si(Me)3 reagents demonstrate their general potential as benzyl anion equivalents.
Methylbenzene Cation Radical α-Fragmentation Selectivities Revealed in SET-Photoadditions of p-Xylene Derivatives to 1,4-Dicyanonaphthalene
d'Alessandro, Nicola,Albini, Angelo,Mariano, Patrick S.
, p. 937 - 942 (2007/10/02)
SET-promoted photoreactions of selected p-xylene derivatives, including p-xylene (3a), p-phenylenediacetic acid (3b), p-bisbenzene (3c), p-toluene (3d), p-tolylacetic acid (3e), and p-(trimethylsilyl)methyl
Benzylic Grignard Reagents: Application of (thf = tetrahydrofuran) in Regioselective Grignard Formation and C-O Cleavage in Benzyl Ethers
Gallagher, Michael J.,Harvey, Stephen,Raston, Colin L.,Sue, Rodney E.
, p. 289 - 290 (2007/10/02)
Benzylic Grignard reagents (2)-(4), bearing ortho- and para-halogeno ring substituents, are readily accessible by treating the corresponding benzylic halide with (1) in tetrahydrofuran (thf); o- and p-chloromethyl(methoxymethyl)benzenes with (1) rapidly yield 'di-Grignards' whereas the meta-isomer only affords a mono-Grignard' (5), and bis(methoxymethyl)benzenes slowly undergo C-O cleavage, (6).
Substitution electrophile originale (en position benzylique), avec le benzyltrimethylsilane
Bordeau, Michel,Villeneuve, Patrice,Bennetau, Bernard,Dunogues, Jacques
, p. 169 - 174 (2007/10/02)
Benzyltrimethylsilane reacts with iodine monobromide, bromine in the presence of iodine as catalyst, or bromine under electrophilic substitution either on the aromatic ring or at the benzylic position.The for the first time observed direct benzylic substi
