A Synthetic Route to α-Substituted Butenolides: Enantioselective Synthesis of (+)-Ancepsenolide
作者:Cynthia Ghobril、Jérémy Kister、Rachid Baati
DOI:10.1002/ejoc.201100491
日期:2011.7
A variety of α-substituted butenolides was efficiently synthesized starting from commercially available tetronic acid and carboxylic acids in four steps. The effectiveness of this approach is illustrated in the short synthesis of one of the first butenolide acetogenins: (+)-ancepsenolide.
Organocatalytic Enantiospecific Total Synthesis of Butenolides
作者:Rudrakshula Madhavachary、Rosy Mallik、Dhevalapally B. Ramachary
DOI:10.3390/molecules26144320
日期:——
Biologically important, chiral natural products of butenolides, (-)-blastmycinolactol, (+)-blastmycinone, (-)-NFX-2, (+)-antimycinone, lipid metabolites, (+)-ancepsenolide, (+)-homoancepsenolide, mosquito larvicidal butenolide and their analogues were synthesized in very good yields in a sequential one-pot manner by using an organocatalytic reductive coupling and palladium-mediated reductive deoxygenation
De novo protecting-group-free total synthesis of (+)-muricadienin, (+)-ancepsenolide and (+)-3-hexadecyl-5-methylfuran-2(5H)-one
作者:Rupesh A. Kunkalkar、Debasish Laha、Rodney A. Fernandes
DOI:10.1039/c6ob01721e
日期:——
protecting-group-free total synthesis of (+)-muricadienin, (+)-ancepsenolide and (+)-3-hexadecyl-5-methylfuran-2(5H)-one has been achieved. Ring-closing-metathesis has been the key step in the synthesis. In (+)-muricadienin synthesis, a long chain alkyl group has been installed by an sp–sp3 Sonogashira type reaction followed by a cis-selective Lindlar reduction. The total synthesis is achieved in 7 steps
Enantioselective Synthesis of Ancepsenolide and its Analogs
作者:Katsuki TAKAI、Ryozo IRIYE
DOI:10.1271/bbb.65.1903
日期:2001.1
Ancepsenolide (1a-s) and the enantiomer (1a-r) were respectively synthesized from (S)- and (R)-2-[(R)-O-MEM-mandeloyloxylpropanal (3a-s and 3a-r) and diisopropyl hexadecanedioate (5). The analogs (1b, 2a and 2b) were synthesized by a similar method.