60760-00-1Relevant academic research and scientific papers
Synthesis of N,N-dimethyl-2-(tributylstannyl)methyl-5-substituted benzylamines as a quinodimethane precursor by the reaction of N,N-dimethyl- N-(tributylstannyl)methyl-4-substituted benzylammonium salts with lithium diisopropylamide
Maeda, Yasuhiro,Sato, Yoshiro
, p. 508 - 511 (1998)
Reaction of N,N-dimethyl-N-(tributylstannyl)methyl-4-substituted benzylammonium salts 2 with lithium diisopropylamide (LDA) gave N,N-dimethyl- 2-(tributylstannyl)methyl-5-substituted benzylamines 3 as the main products. Treatment of 3 with iodomethane followed by tetrabutylammonium fluoride (TBAF) in the presence of dimethyl fumarate gave the corresponding dimethyl trans-1,2,3,4-tetrahydro-6-substituted naphthalene-2,3-dicarboxylates 15 in good yields.
Intermediate in Sommelet-Hauser Rearrangement of N,N-Dimethylbenzylammonium N-Methylides
Shirai, Naohiro,Watanabe, Yoko,Sato, Yoshiro
, p. 2767 - 2770 (2007/10/02)
Formation of benzylammonium N-methylides by fluoride anion induced desilylation of dimethyl(4-substituted benzyl)ammonium halides (1) and 3-substituted benzyl analogues (6) was examined to isolate 5--6-methylene-1,3-cyclohexadienes (isotoluene intermediates, 3,8,10) in the Sommelet-Hauser rearrangement.Some isotoluenes were isolated and their structures were confirmed by 1H NMR analysis.The stability of the isotoluenes was dependent on the electron-donating effects of the substituents on the conjugated bonds, and 3-methoxy-substituted isotoluene 3a was the most stable compound studied.
