Journal ArticleDOI
One-step conversion of flavanones into isoflavones : a new facile biomimetic synthesis of isoflavones
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TLDR
One-step chemical conversion of flavanones into isoflavones by use of thallium trinitrate (TIN) is reported in this article, and the mechanism of a 2,3-aryl migration in this reaction is discussed in relation to in vivo rearrangement process of precursors in the is oflavone biosynthesis.About:
This article is published in Tetrahedron Letters.The article was published on 1990-01-01. It has received 24 citations till now. The article focuses on the topics: Flavanone & Isoflavones.read more
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Synthesis and antibacterial activity of substituted flavones, 4-thioflavones and 4-iminoflavones
Ehsan Ullah Mughal,Muhammad Ayaz,Zakir Hussain,Aurangzeb Hasan,Amina Sadiq,Muhammad Riaz,Abdul Malik,Samreen Hussain,M. Iqbal Choudhary +8 more
TL;DR: Activity of 4-thioflavones and 4-iminoflavones was found to be higher than that of their corresponding flavone analogues and the presence of electronegative groups in the studied compounds showed a direct relationship to the antibacterial activity.
Journal ArticleDOI
Review article number 135 biosynthesis in the rotenoid group of natural products: applications of isotope methodology.
Leslie Crombie,Donald A. Whiting +1 more
TL;DR: Using the natural rotenoids rotenone, amorphigenin, deguelin, rotenonic acid, dalpanol and munduserone as examples, their phytochemical biosynthesis has been examined in Derris elliptica, Amorpha fruticosa and Tephrosia vogelii to require new approaches to the demanding chemical and stereochemical requirements of the experimentation.
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A new and efficient Baeyer–Villiger rearrangement of flavanone derivatives by the methyltrioxorhenium/H2O2 catalytic system
Roberta Bernini,Enrico Mincione,Manuela Cortese,Giovanni Aliotta,Anna Oliva,Raffaele Saladino +5 more
TL;DR: The catalytic Baeyer-Villiger rearrangement of flavanones is described by the use of the homogeneous methyltrioxorhenium (MTO)/H2O2 system.
References
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Enzymatic rearrangement of flavanone to isoflavone
M. Hagmann,Hans Grisebach +1 more
TL;DR: A microsomal preparation from elicitor‐challenged soybean cell suspension cultures catalyzes an NADPH‐dependent and dioxygen‐dependent rearrangement of (2S)‐naringenin to genistein, which catalyzed the conversion of 4'‐dihydroxyflavanone to daidzein and the ‘isoflavone synthase’ was found in eliciting soybean seedlings.