An Asymmetric Synthesis of (-)-Deoxypodophyllotoxin
摘要:
Diels-Alder cycloaddition between the fumarate of methyl (S)-mandelate (22) and alpha-hydroxy-alpha-aryl-o-quinodimethane 21 produces an endo cycloadduct (23) in 58% yield. The preparation of the precursor to o-quinodimethane 21 and the conversion of cycloadduct 23 to optically pure (-)-deoxypodophyllotoxin (1) is described.
An Asymmetric Synthesis of (-)-Deoxypodophyllotoxin
摘要:
Diels-Alder cycloaddition between the fumarate of methyl (S)-mandelate (22) and alpha-hydroxy-alpha-aryl-o-quinodimethane 21 produces an endo cycloadduct (23) in 58% yield. The preparation of the precursor to o-quinodimethane 21 and the conversion of cycloadduct 23 to optically pure (-)-deoxypodophyllotoxin (1) is described.
Aidhen, Indrapal Singh; Narasimhan, N. S., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1993, vol. 32, # 2, p. 234 - 238
作者:Aidhen, Indrapal Singh、Narasimhan, N. S.
DOI:——
日期:——
A novel and versatile synthesis of 1-aryl-benzocyclobutenols and 1-aryl-benzocyclobutenes
作者:Indrapal Singh Aidhen、N.S. Narasimhan
DOI:10.1016/s0040-4039(00)71267-6
日期:1991.5
Halogen metal exchange, occuring in presence of electrophilic centres, provides a simple and efficient route to 1-aryl-benzocyclobutenols and benzocyclobutenes.
Aidhen Indrapal Singh, Narasimhan N. S., Indian J. Chem, 32 (1993) N 2, S 234-238
作者:Aidhen Indrapal Singh, Narasimhan N. S.
DOI:——
日期:——
An Asymmetric Synthesis of (-)-Deoxypodophyllotoxin
作者:David E. Bogucki、James L. Charlton
DOI:10.1021/jo00108a021
日期:1995.2
Diels-Alder cycloaddition between the fumarate of methyl (S)-mandelate (22) and alpha-hydroxy-alpha-aryl-o-quinodimethane 21 produces an endo cycloadduct (23) in 58% yield. The preparation of the precursor to o-quinodimethane 21 and the conversion of cycloadduct 23 to optically pure (-)-deoxypodophyllotoxin (1) is described.