[2-(1-吡咯烷基)苯基亚甲基]-丙腈(2a)对1,2,3,3a,4,5-六氢吡咯并[1,2 - a ]喹啉-4,4-二腈的闭环机理(3a)已经通过使用1 H-NMR光谱的动力学测量来研究。可以表明,确定速率的步骤由分子内1,5氢转移组成,该转移伴随着分子内的电荷分离。计算出的2a(AM1)和实验(X射线)分子结构非常吻合。在基态几何结构中,最有可能发生1.5的氢转移。随后,前一个乙烯基的旋转和CC键的形成(导致六元环)也以立体化学定义的方式发生。
Stereochemical aspects of the "tert-amino effect". 1. Regioselectivity in the synthesis of pyrrolo[1,2-a]quinolines and benzo[c]quinolizines
作者:Walter H. N. Nijhuis、Willem Verboom、A. Abu El-Fadl、Sybolt Harkema、David N. Reinhoudt
DOI:10.1021/jo00262a043
日期:1989.1
An efficient microwave-assisted solvent-free synthesis of pyrido-fused ring systems applying the tert-amino effect
作者:Nadya Kaval、Beata Halasz-Dajka、Giang Vo-Thanh、Wim Dehaen、Johan Van der Eycken、Péter Mátyus、André Loupy、Erik Van der Eycken
DOI:10.1016/j.tet.2005.07.046
日期:2005.9
Significant improvements in the synthesis of pyrido-fused heterocycles were observed when performing the reaction under solvent-free conditions, applying the tert-amino effect as the key ring closure methodology. An unexpected cyclization of ortho-(1'-azacycloalkyl)benzaldehydes has been studied in water and on solid support. (c) 2005 Elsevier Ltd. All rights reserved.
NIJHUIS, WALTER H. N.;VERBOOM, WILLEM;ABU, EL-FADL A.;HARKEMA, SYBOLT;REI+, J. ORG. CHEM., 54,(1989) N, C. 199-209
作者:NIJHUIS, WALTER H. N.、VERBOOM, WILLEM、ABU, EL-FADL A.、HARKEMA, SYBOLT、REI+
DOI:——
日期:——
VERBOOM, W.;REINHOUDT, D. N.;VISSER, R.;HARKEMA, S., J. ORG. CHEM., 1984, 49, N 2, 269-276
作者:VERBOOM, W.、REINHOUDT, D. N.、VISSER, R.、HARKEMA, S.
DOI:——
日期:——
GROENEN, L. C.;VERBOOM, W.;NIJHUIS, W. H. N.;REINHOUDT, D. N.;VAN, HUMMEL+, TETRAHEDRON, 44,(1988) N 14, C. 4637-4644
作者:GROENEN, L. C.、VERBOOM, W.、NIJHUIS, W. H. N.、REINHOUDT, D. N.、VAN, HUMMEL+