Exploring the molecular mechanism of karrikins and strigolactones
摘要:
Karrikins and strigolactones are novel plant growth regulators that contain similar molecular features, but very little is known about how they elicit responses in plants. A tentative molecular mechanism has previously been proposed involving a Michael-type addition for both compounds. Through structure-activity studies with karrikins, we now propose an alternative mechanism for karrikin and strigolactone mode of action that involves hydrolysis of the butenolide ring. Crown Copyright (C) 2012 Published by Elsevier Ltd. All rights reserved.
Cu(II)-Catalyzed Acylation by Thiol Esters Under Neutral Conditions: Tandem Acylation-Wittig Reaction Leading to a One-Pot Synthesis of Butenolides
作者:Kazumasa Matsuo、Mitsuru Shindo
DOI:10.1021/ol102407k
日期:2010.11.19
The first catalytic acylation of alcohols with a thiolester present in Wittig reagents under neutral conditions catalyzed by the Cu(II) salt through a push−pull mechanism is reported. Furthermore, a new methodology for the one-pot lactonization of acyloins by a copper catalyst is developed. The synthetic utility of this method for the synthesis of natural products is shown.
Exploring the molecular mechanism of karrikins and strigolactones
作者:Adrian Scaffidi、Mark T. Waters、Charles S. Bond、Kingsley W. Dixon、Steven M. Smith、Emilio L. Ghisalberti、Gavin R. Flematti
DOI:10.1016/j.bmcl.2012.04.016
日期:2012.6
Karrikins and strigolactones are novel plant growth regulators that contain similar molecular features, but very little is known about how they elicit responses in plants. A tentative molecular mechanism has previously been proposed involving a Michael-type addition for both compounds. Through structure-activity studies with karrikins, we now propose an alternative mechanism for karrikin and strigolactone mode of action that involves hydrolysis of the butenolide ring. Crown Copyright (C) 2012 Published by Elsevier Ltd. All rights reserved.