Lash, Timothy D.; Hoehner, Michael C., Journal of Heterocyclic Chemistry, 1991, vol. 28, # 7, p. 1671 - 1676
作者:Lash, Timothy D.、Hoehner, Michael C.
DOI:——
日期:——
A Convenient Preparation of Benzyl 4-(R<sup>1</sup>)-3-(R<sup>2</sup>)Pyrrole-2-carboxylates
作者:D. H. Burns、C. S. Jabara、M. W. Burden
DOI:10.1080/00397919508011369
日期:1995.2
The class of title pyrroles, important intermediates in porphyrin synthesis, have been prepared via the Barton and Zard method. The benzyl isocyanoacetate used in the synthesis was in turn prepared in an efficient and inexpensive 3-step procedure from glycine.
Regioselective synthesis of 5-unsubstituted benzyl pyrrole-2-carboxylates from benzyl isocyanoacetate
A general synthesis of 5-unsubstitutedbenzylpyrrole-2-carboxylates was developed based on the reaction of β-nitroacetates with benzylisocyanoacetate. The advantage of this route over other pyrrole syntheses was the regiochemical control of the substitution pattern on the pyrrole ring.
Total synthesis of new porphyrins isolated from the coral sea demosponge corallistes sp.
作者:Ravindra K. Pandey、Sam H. Leung、Kevin M. Smith
DOI:10.1016/0040-4039(94)88251-7
日期:1994.10
Three new metal-free porphyrins, corallistin B, corallistin C and corallistin E isolated from the demosponge Corallistes sp. were synthesized as methyl esters in excellent yield by using either the MacDonald or a,c-biladiene routes to porphyrins.