174362-30-2Relevant academic research and scientific papers
Generation and Cycloadditions of 2-(N-acylamino)-1-thia-1,3-dienes part III: Control of diastereoselectivity using homochiral auxiliaries
Bell, Andrew S.,Fishwick, Colin W. G.,Reed, Jessica E.
, p. 3219 - 3234 (2007/10/03)
Activated 2-(N-acylamino)-1-thia-1,3-dienes undergo efficient diastereoselective Diels-Alder cycloadditions giving access to thiopyrans of high optical purity. By variation of the position and nature of the chiral auxiliaries we have been able to induce a
Synthesis and Solvatochromism of Some Azo Dyes with Ferrocene as Electron Donor Group for Optical Data Recording
Kersten, Helmut,Boldt, Peter
, p. 129 - 139 (2007/10/02)
We synthesized the arylazo compounds 3a-c, 5a,b, 5d, 5f, 6b, 6d, 6f, 7-9 containing ferrocene as electron donor group and different electron acceptors or donors in order to tune the absorption wavelength. Compounds 5f, 6f, 8, 9 were incorporated as side chains in liquid crystalline polymers. As holographic experiments showed these materials are not superior to polymers containing arylazochromophores without the ferrocene moiety like compounds 10, 11. In addition, the solvatochromism of the ferrocene azo compounds has been measured as a first test of their first order NLO activity. Only compound 9 showed remarkable values.
Highly efficient diastereoselective exo Diels-Alder reactions of homochiral 2-(N-acylamino)-1-thia-1,3-dienes: A powerful entry into optically pure thiopyrans
Bell, Andrew S.,Fishwick, Colin W.G.,Reed, Jessica E.
, p. 123 - 126 (2007/10/02)
4-Phenyl-2-N-(R-(-)-α-(2-naphthyl)ethylamino)-1-thia-1,3-dienes when activated by acetyl chloride, undergo extremely efficient diastereoselective exo Diels-Alder cycloadditions giving access to thiopyrans of high optical purity.
