A rapid and high-yielding silylation of terminal alkynes employing TMSOTf and catalytic quantities of Zn(OTf)(2) has been developed. The reaction works well for a variety of substrates including reactive esters. Fifteen examples with yields of > 90% are reported.
Synthesis of the 5-HT1D receptor agonist MK-0462 via a Pd-catalyzed coupling reaction
作者:Cheng-yi Chen、David R. Lieberman、Robert D. Larsen、Robert A. Reamer、Thomas R. Verhoeven、Paul J. Reider、Ian F. Cottrell、Peter G. Houghton
DOI:10.1016/0040-4039(94)88204-5
日期:1994.9
Application of a palladium-catalyzed coupling between 3 and 5a to the synthesis of the novel 5-HT1DreceptoragonistMK-0462 (1), a potential anti-migraine drug, is described.
Regiospecific Synthesis of the C and D Rings of Viridin
作者:Brian Keay、Kristine Muller
DOI:10.1055/s-2008-1072651
日期:2008.5
An eight-step regiospecificsynthesis of the C and D rings of viridin is reported using an intramolecular Diels-Alder reaction of a furan diene as the key step.
使用呋喃二烯的分子内 Diels-Alder 反应作为关键步骤,报道了绿色素的 C 和 D 环的八步区域特异性合成。
Synthesis of (±)-Lotthanongine, a Novel Natural Product with a Flavan-Indole Hybrid Structure
作者:Keisuke Suzuki、Keisuke Hatakeyama、Ken Ohmori
DOI:10.1055/s-2005-868485
日期:——
First total synthesis of lotthanongine (3), a natural product with a flavan-indole composite structure, has been achieved via the Lewis acid-catalyzed C-C bond formation between the catechin and the indole units.
The Intramolecular Silyl-Modified Sakurai (ISMS) reaction. Synthetic studies towards ambruticine
作者:István E Markó、Daniel J Bayston
DOI:10.1016/s0040-4020(01)85240-6
日期:1994.1
The ISMS reaction has been used to efficiently construct the right-hand portion 3 of the antifungal antibiotic ambruticine 1.
ISMS反应已用于有效构建抗真菌抗生素氨苄青霉素1的右侧部分3。
Thermolyse et photolyse de cetones non saturees—XXVIII
作者:J. Drouin、F. Leyendecker、J.M. Conia
DOI:10.1016/0040-4020(80)87019-0
日期:1980.1
Two ββ-dialkenyl- and ββ-dialkynyl-cyclopentanones 3 and 5 were synthesised using mixed methyl or t-butyl magnesiocuprates R2MeCu(MgX)2 and R2t-BuCu(MgX)2, where R is the alkenyl or alkynyl residue. Their thermal cyclisation leads to 2,8,9-functionalised [3.3.3)propellanones.