18456-88-7Relevant academic research and scientific papers
Asymmetric synthesis of 9-alkyl tetrahydroxanthenones: Via tandem asymmetric Michael/cyclization promoted by chiral phosphoric acid
Gao, Yu-Qi,Hou, Yi,Chen, Junhan,Zhen, Yanxia,Xu, Dongyang,Zhang, Hongli,Wei, Hongbo,Xie, Weiqing
supporting information, p. 348 - 354 (2021/01/29)
A tandem asymmetric Michael-addition/cyclization of cyclic 1,3-dicarbonyl compounds to β,γ-unsaturated α-ketoesters catalyzed by chiral phosphoric acid is presented. This protocol provides a facile approach for the construction of enantioenriched 9-alkyl tetrahydroxanthenones, an ubiquitous framework found in a number of natural products and pharmaceutical molecules, in high yields with good to high enantioselectivities. This journal is
High-Yielding Total Synthesis of Sexually Deceptive Chiloglottones and Antimicrobial Dialkylresorcinols through an Organocatalytic Reductive Coupling Reaction
Madhavachary, Rudrakshula,Ramachary, Dhevalapally B.
supporting information, p. 7317 - 7323 (2016/02/20)
Biologically important, less-explored natural products of sexually deceptive chiloglottones, antimicrobial dialkylresorcinols, and their many analogues were synthesized in very good yields in a sequential two-pot manner by using an "organocatalytic reductive coupling reaction" as the key step. Sexually deceptive chiloglottones, antimicrobial dialkylresorcinols, and their many analogues are synthesized in very good yields in a sequential two-pot manner by using an "organocatalytic reductive coupling reaction" as the key step.
Synthesis of chiloglottones - Semiochemicals from sexually deceptive orchids and their pollinators
Poldy, Jacqueline,Peakall, Rod,Barrow, Russell Allan
supporting information; experimental part, p. 4296 - 4300 (2009/12/06)
A five-step synthesis of monoalkyl- and 2,5-dialkyl-1,3-cyclohexanediones (1) is described via a sequence involving sequential Birch reductions and alkylations from the readily accessible and inexpensive starting material, 3,5-dimethoxybenzoic acid. Two approaches were considered in which alkylation at C-2 occurs either prior or subsequent to the proposed reduction. The successful route, in which Birch reduction of a 3-alkyl resorcinol derivative (3) precedes alkylation was applied in the synthesis of chiloglottone 1 (1dc), in 58% overall yield. Chiloglottone 1 is a member of a new class of natural products, representing a known sex pheromone of the thynnine wasp Neozeleboria cryptoides and pollinator attractant in the Australian sexually deceptive orchid genus Chiloglottis. The synthetic homologues were assessed for their biological activity via electroantennographic detection.
