Benzotriazole Mediated Synthesis of Some 5-Alkyl-Dihydro-4H-1,3,5-Dithiazines
作者:Naseem Peerzada、Ian Neely
DOI:10.1080/00397910008087380
日期:2000.2
An efficient synthesis of N-substituted dihydro-4H-1,3,5-dithiazines is described. N,N-Bis(benzotriazolylmethyl) alkylamines 1 smoothly under go cyclisation reaction in the presence of formaldehyde and hydrogen sulfide to give 5-substituted dihydro-4H-1,3,5-dithiazines 2.
KATRITZKY A. R.; RACHWAL S.; RACHWAL B., J. CHEM. SOC. PERKIN TRANS.,(1987) N 4, 799-804
作者:KATRITZKY A. R.、 RACHWAL S.、 RACHWAL B.
DOI:——
日期:——
A Straightforward Route to Homoallyl-Homocrotylamines Promoted by a Titanium Complex
作者:Stéphanie Toulot、Quentin Bonnin、Virginie Comte、Louis Adriaenssens、Philippe Richard、Pierre Le Gendre
DOI:10.1002/ejoc.201201262
日期:2013.2
3-dienes and Cp2TiH, react with benzotriazole derivatives to give homoallylic amines in good yields. Under similar conditions, triple cascade reactions (allyltitanation followed by cationic 2-aza-Cope rearrangement followed by a second allyltitanation) occur from bis(benzotriazolyl) compounds affording a straightforward route to homoallyl-(E)-homocrotylamines. A theoretical study provides further insight