6-exo-trig Michael addition-lactonizations for catalytic enantioselective chromenone synthesis
作者:Rifahath M. Neyyappadath、David B. Cordes、Alexandra M. Z. Slawin、Andrew D. Smith
DOI:10.1039/c6cc10178j
日期:——
The catalyticenantioselective 6-exo-trig Michael addition-lactonization of enone-acid substrates to form cis-chromenones with high diastereo- and enantiocontrol was developed using the commercially available isothiourea tetramisole. An acidic workup proved necessary...
Kuliev, A. B.; Anave, P. A. L.; Kuliev, F. A., Journal of Organic Chemistry USSR (English Translation), 1982, vol. 18, p. 1493 - 1494
作者:Kuliev, A. B.、Anave, P. A. L.、Kuliev, F. A.、Mamedova, Sh. E.
DOI:——
日期:——
KULIEV, A. B.;ANAVE, P. A. L.;KULIEV, F. A.;MAMEDOVA, SH. EH., ZH. ORGAN. XIMII, 1982, 18, N 8, 1709-1711
作者:KULIEV, A. B.、ANAVE, P. A. L.、KULIEV, F. A.、MAMEDOVA, SH. EH.
DOI:——
日期:——
DIJKSTRA P. J.; VAN STEEN B. J.; REINHOUDT D. N., J. ORG. CHEM., 51,(1986) N 26, 5127-5133
作者:DIJKSTRA P. J.、 VAN STEEN B. J.、 REINHOUDT D. N.
DOI:——
日期:——
Enantioselective construction of spiro-tetrahydroquinoline scaffolds through asymmetric catalytic cascade reactions
作者:Jia-Lu Zhang、Rui Ma、Huan-Huan Zhao、Peng-Fei Xu
DOI:10.1039/d2cc00502f
日期:——
asymmetric catalytic cascade reactions catalyzed by quinine-derived chiral bifunctionalsquaramideorganocatalysts. In this approach, differently substituted spiro-tetrahydroquinoline derivatives were smoothly obtained with high yields, and excellent diastereoselectivities and enantioselectivities (up to 99% yield, up to >20 : 1 dr, up to >99% ee, 40 examples) under mild reaction conditions.