Stereocontrolled oxycarbonylation of 4-benzyloxyhepta-1,6-diene-3,5-diols promoted by chiral palladium(II) complexes
摘要:
The synthesis of all diastereomers of 4-benzyloxyhepta-1,6-diene-3,5-diols 8-10 is described. The diastereo- and enantioselectivity of palladium(II)-catalysed oxycarbonylation of the symmetric compounds 8-10 were studied. The substrates 8-10 underwent Pd(II)-initiated oxycarbonylative bicyclisation to afford bicyclic lactones 11-14 in good yields and with excellent threo-diastereoselectivity. Additionally, the synthesis of enantiomerically pure lactone D-gluco-12, precursor for syntheses of goniofufurone and 7-epi-gonio-fufurone, was developed. (c) 2007 Elsevier Ltd. All rights reserved.
Stereocontrolled oxycarbonylation of 4-benzyloxyhepta-1,6-diene-3,5-diols promoted by chiral palladium(II) complexes
摘要:
The synthesis of all diastereomers of 4-benzyloxyhepta-1,6-diene-3,5-diols 8-10 is described. The diastereo- and enantioselectivity of palladium(II)-catalysed oxycarbonylation of the symmetric compounds 8-10 were studied. The substrates 8-10 underwent Pd(II)-initiated oxycarbonylative bicyclisation to afford bicyclic lactones 11-14 in good yields and with excellent threo-diastereoselectivity. Additionally, the synthesis of enantiomerically pure lactone D-gluco-12, precursor for syntheses of goniofufurone and 7-epi-gonio-fufurone, was developed. (c) 2007 Elsevier Ltd. All rights reserved.
Stereocontrolled oxycarbonylation of 4-benzyloxyhepta-1,6-diene-3,5-diols promoted by chiral palladium(II) complexes
作者:Peter Kapitán、Tibor Gracza
DOI:10.1016/j.tetasy.2007.12.003
日期:2008.1
The synthesis of all diastereomers of 4-benzyloxyhepta-1,6-diene-3,5-diols 8-10 is described. The diastereo- and enantioselectivity of palladium(II)-catalysed oxycarbonylation of the symmetric compounds 8-10 were studied. The substrates 8-10 underwent Pd(II)-initiated oxycarbonylative bicyclisation to afford bicyclic lactones 11-14 in good yields and with excellent threo-diastereoselectivity. Additionally, the synthesis of enantiomerically pure lactone D-gluco-12, precursor for syntheses of goniofufurone and 7-epi-gonio-fufurone, was developed. (c) 2007 Elsevier Ltd. All rights reserved.