( E )-和( Z )-异氰基烯烃是通过乙烯基碘与甲酰胺的顺序交叉偶联,然后脱水选择性合成的。最佳催化剂由 Cu II和反式-N,N'-二甲基-1,2-环己二胺原位生成,可将 ( E )-或 ( Z )-乙烯基碘与甲酰胺快速偶联,从而最大程度地减少生成物的异构化乙烯基甲酰胺。该方法有效地提供了一系列无环、碳环和杂环异氰基烯烃;非对映体异氰基抗生素 B371 和E -B371 的选择性立体发散合成说明了其多功能性。
Synthesis and Biological Activities of the Antibiotic B 371 and its Analogs
作者:Inga Hoppe、Ulrich Schöllkopf
DOI:10.1002/jlac.198419840317
日期:1984.3.12
is described as well as the syntheses of a series of structural analogs of type 4. The antimicrobial in vitroactivity of these vinyl isocyanides, substituted in β-position either by an indole derivative or by an aryl or 2-thienyl group, was tested against Escherichia Coli, Bacillus subtilis, and Mucor muhei TÜ 284 (Table 1). Some of the compounds 4 display higher activity than the naturally occurring
The conversion of carboxylic acids into isonitriles via selenium-phenyl selenocarbamates
作者:Anthony G. M. Barrett、Hyok Kwon、Eli M. Wallace
DOI:10.1039/c39930001760
日期:——
Carboxylic acids are converted into isonitriles via Schmidt rearrangement of the derived acyl azides, addition of phenylselenol to the resultant isocyanate, tributylstannane reduction and dehydration.
Elucidating the Reaction Pathway of Decarboxylation-Assisted Olefination Catalyzed by a Mononuclear Non-Heme Iron Enzyme
作者:Cheng-Ping Yu、Yijie Tang、Lide Cha、Sergey Milikisiyants、Tatyana I. Smirnova、Alex I. Smirnov、Yisong Guo、Wei-chen Chang
DOI:10.1021/jacs.8b10077
日期:2018.11.14
olefins into molecules is a key transformation in organic synthesis. The recently discovered decarboxylation-assisted olefination in the biosynthesis of rhabduscin by a mononuclear non-heme iron enzyme ( P.IsnB) represents a novel approach in olefin construction. This method is commonly employed in natural product biosynthesis. Herein, we demonstrate that a ferryl intermediate is used for C-H activation
The reaction of isocyanomethylenetriphenylphosphorane, generated in situ from the corresponding phosphonium salt, with a diverse set of aldehydes afforded vinyl isocyanides in good to high yields. Excellent E-selectivity was observed for aliphatic aldehydes and 2,6-disubstituted aromatic aldehydes, whereas Z-olefins were formed predominantly with ortho-substituted aryl aldehydes. (Z)-1-Bromo-2-(2-
[EN] VINYL ISOCYANIDE COMPOUNDS AS ANTIBACTERIAL AGENTS<br/>[FR] COMPOSÉS DE VINYLE ISOCYANURE UTILISÉS EN TANT QU'AGENTS ANTIBACTÉRIENS
申请人:UNIV BATH
公开号:WO2022238694A1
公开(公告)日:2022-11-17
Compounds of formula (I) or formula (II) are disclosed: Wherein Y1, Y2, and Y3are independently selected from C-R1or N. Such compounds find use as antibiotics and antifungals.