42016-15-9Relevant articles and documents
Synthesis of (±)-licarin B and eupomatenoids-1 and -12: A general approach to 2-aryl-7-alkoxy-benzofuranoid neolignans
Engler, Thomas A.,Chai, Wenying
, p. 6969 - 6970 (2007/10/03)
New synthesis of the title compounds are described using Lewis acid-promoted reactions of styrenes with N-phenylsulfonyl-1,4-benzoquinone monoimines to regioselectively form the 2-arylbenzofuranoid ring system followed by conversion of the aromatic N-phenylsulfonyl moiety into a propenyl substituent.
A regioselective lithiation of ortho-cresols using the bis(dimethylamino)phosphoryl group as a directing group: General synthesis of 2,3-dihydrobenzo[b]furans including naturally occurring neolignans
Watanabe,Kawanishi,Akiyoshi,Furukawa
, p. 3123 - 3131 (2007/10/02)
A general synthetic method was developed for 2-aryl-2,3-dihydrobenzo[b]furans via regioselective lithiation of ortho-tolyl tetramethylphosphorodiamidates followed by addition of aromatic aldehydes as a key step. ortho-Tolyl tetramethylphosphorodiamidates
NEOLIGNANS FROM MAGNOLIA KACHIRACHIRAI
Ito, Kazuo,Ichino, Kazuhiko,Iida, Toshiyuki,Lai, Jengshiow
, p. 2643 - 2646 (2007/10/02)
Two new neolignans named kachirachirol-A and B were isolated from the leaves of Magnolia kachirachirai and their chemical structures determined to be 2-(p-hydroxyphenyl)-7-methoxy-3-methyl-5-trans-propenylbenzofuran and rel-(2S,3S)-2-catechyl-2,3-dihydro-7-methoxy-3-methyl-5-trans-propenylbenzofuran.Key Word Index - Magnolia kachirachirai; Magnoliaceae; neolignan; benzofuranoid; kachirachirol-A; kachirachirol-B; licarin-A; eupomatenoid.