111254-24-1Relevant articles and documents
Synthesis and Configuration of Natural Dracaenones
Li, Mei-Mei,Wu, Yikang,Liu, Bo
, p. 575 - 578 (2019/01/24)
Several dracaenones were synthesized in enantiopure forms for the first time. The key chiral center at C-7 was installed with well-defined stereochemistry using either an Evans aldol condensation or a chiral oxidant-mediated asymmetric epoxidation, while
A concise synthetic approach to brazilin via Pd-catalyzed allylic arylation
Jung, Youngeun,Kim, Ikyon
, p. 4331 - 4335 (2015/04/14)
A short synthetic route to the trimethyl ether of brazilin was developed in 6 steps from 7-methoxychromene with 78% overall yield. Regioselective installation of a formyl group onto 7-methoxychromene followed by reduction and acetylation afforded allylic acetate. Palladium-catalyzed allylic coupling of allylic acetate with arylboronic acid provided direct access to 3-benzylchromene which was converted to the target molecule upon ensuing dihydroxylation and acid-catalyzed cyclization in a highly concise manner. This journal is
Homoisoflavonoids and related compounds. II. Isolation and absolute configurations of 3,4-dihydroxylated homoisoflavans and brazilins from Caesalpinia sappan L.
Namikoshi,Nakata,Yamada,et al.
, p. 2761 - 2773 (2007/10/02)
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