61441-09-6Relevant articles and documents
Total Synthesis of Zephycarinatines via Photocatalytic Reductive Radical ipso-Cyclization
Ichimura, Atsuhiko,Inuki, Shinsuke,Kawabe, Takaaki,Nakagawa, Kohei,Ohno, Hiroaki,Oishi, Shinya,Takeuchi, Haruka
supporting information, p. 21210 - 21215 (2020/09/16)
We report herein a nonbiomimetic strategy for the total synthesis of the plicamine-type alkaloids zephycarinatines C and D. The key feature of the synthesis is a stereoselective reductive radical ipso-cyclization using visible-light-mediated photoredox ca
Pd-Catalyzed/Iodide-Promoted α-Arylation of Ketones for the Regioselective Synthesis of Isocoumarins
Casnati, Alessandra,Maggi, Raimondo,Maestri, Giovanni,Della Ca, Nicola,Motti, Elena
, p. 8296 - 8303 (2017/08/14)
A variety of isocoumarins have been synthesized directly from 2-halobenzoates and ketones through a palladium-catalyzed α-arylation step followed by an intramolecular cyclization process. The addition of iodide anions to the reaction mixture increased yields and selectivities especially when 2-bromobenzoates were employed. This phosphine-free one-pot synthesis features a high functional group tolerance and gives access to richly decorated isocoumarins. This general methodology was successful in the total synthesis of Xyridin A, an important natural product with antibacterial and antifungal activity.
AD-35 preparation technology
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Paragraph 0114; 0115; 0116, (2016/10/10)
The invention discloses a new preparation method of a benzodioxole derivative (AD-35) shown by the formula (I). The method comprises the following steps: with piperic acid as a raw material, performing bromination, esterification, cyaniding, cyclopropane