Synthesis of chiral oxa- and azacycle-fused anthraquinone derivatives
摘要:
A convenient protocol for the synthesis of chiral pyran and piperidine ring-fused anthraquinone derivatives has been developed from (R)-2,3-O-cyclohexylidene-glyceraldehyde using sequential applications of enyne metathesis, Diels-Alder reaction and aromatization as key steps. (C) 2010 Elsevier Ltd. All rights reserved.
Complementary routes to both enantiomers of pipecolic acid and 4,5-dihydroxypipecolic acid derivatives
作者:Shital K. Chattopadhyay、Titas Biswas、Tanmoy Biswas
DOI:10.1016/j.tetlet.2007.12.097
日期:2008.2
Complementary new routes to bothenantiomers of N-protected pipecolicacid and the corresponding 4,5-dihydroxylated derivatives are developed, which involve stereo-divergent allylation of a chiral N-allylimine and ring-closing metathesis as key steps.
Synthesis of chiral oxa- and azacycle-fused anthraquinone derivatives
作者:Tanmoy Biswas、Titas Biswas、Shital K. Chattopadhyay
DOI:10.1016/j.tetasy.2010.02.001
日期:2010.2
A convenient protocol for the synthesis of chiral pyran and piperidine ring-fused anthraquinone derivatives has been developed from (R)-2,3-O-cyclohexylidene-glyceraldehyde using sequential applications of enyne metathesis, Diels-Alder reaction and aromatization as key steps. (C) 2010 Elsevier Ltd. All rights reserved.