One-pot synthesis of multifunctionalized cyclopropanes
作者:Meng-Yang Chang、Yi-Chia Chen、Chieh-Kai Chan
DOI:10.1016/j.tet.2014.02.024
日期:2014.4
A facile one-step synthetic protocol toward multifunctionalized cyclopropanes 4 is developed from substituted chalcones 1 and sulfones 2 in good yields via a [2C+1C] annulation. (c) 2014 Elsevier Ltd. All rights reserved.
Synthesis of diarylcyclopropyl spirocyclic ketones
作者:Meng-Yang Chang、Chieh-Kai Chan、Yi-Chia Chen
DOI:10.1016/j.tet.2014.02.056
日期:2014.4
A facile one-pot synthetic route for preparing a series of functionalized diarylcyclopropyl spirocyclic ketones 4 is developed. The efficient cyclopropanation route of the conjugated cyclic ketones 2 with sulfones 1 in the presence of NaH shows interesting molecular diversities. The reaction mechanism of the stereocontrolled cyclopropanations has been discussed. (C) 2014 Elsevier Ltd. All rights reserved.
One-pot synthesis of sulfonyl (E)-stilbenes by nitrobenzene-mediated dimerizative desulfonation of benzylic sulfones
A facile one-pot synthetic route for preparing sulfonyl (E)-stilbenes 4 is developed. The efficient route is realized by a nitrobenzene (PhNO2)-mediated dimerizative desulfonation of benzylic sulfones 3 in the presence of sodium hydride (NaH) in good yields. Some synthetic investigations of sulfonyl stilbenes 4 are also examined. (C) 2014 Elsevier Ltd. All rights reserved.
Aromatic resin acid ring systems via detosylation of polyene cyclization derived products
作者:Janssen Cornelus G. M.、Erik F. Godefroi
DOI:10.1021/jo00138a015
日期:1982.8
JANSSEN, C. G. M.;HENDRIKS, A. H. M.;GODEFROI, E. F., REC. TRAV. CHIM. PAYS-BAS., 1984
作者:JANSSEN, C. G. M.、HENDRIKS, A. H. M.、GODEFROI, E. F.