1,2-di-substituted indan expressed by general formula (I) wherein X is a substituent which can be drawn out under an acidic condition to form a carbocation at 1-position of an indan skeleton, Y is a halogen atom, and X and Y can be in either cis- or trans-configuration forming either a racemic body or an optically active substance; or 1,2-di-substituted indan expressed by general formula (I') wherein X is a substituent which can be drawn out under an acidic condition to form a carbocation at 1-position of an indan skeleton, and X and OH group can be in either cis- or trans-configuration forming either a racemic body or an optically-active substance; or cis-1,2-epoxyindan expressed by general formula (VI) wherein R is phenyl or a lower alkyl group is reacted, under an acidic condition, with a nitrile expressed by general formula (II) wherein R is phenyl or a lower alkyl group to form a cis-oxazoline derivative of formula IV wherein R is phenyl or a lower alkyl group and the oxazoline ring is in cis-configuration forming either a racemic body or an optically active substance which is hydrolysed to produce cis-1-aminoindan-2-ol expressed by general formula (V) wherein NH₂ and OH groups are in cis-configuration forming either a racemic body or an optically-active substance.
通式(I)表示的 1,2-二取代茚满,其中 X 是可在酸性条件下抽出以在茚满骨架的 1 位形成碳位的取代基,Y 是卤素原子,且 X 和 Y 可以顺式或反式构型形成外消旋体或光学活性物质;或通式(I')表示的 1,2-二取代茚满,其中 X 为取代基,可在酸性条件下抽出,在茚满骨架的 1 位形成碳位,X 和 OH 基可顺式或反式构型,形成外消旋体或光学活性物质;或通式(VI)表示的顺式-1,2-环氧茚满,其中 R 是苯基或低级烷基,在酸性条件下与通式(VI)表示的腈反应、与通式(II)(其中 R 是苯基或低级烷基)表示的腈反应,生成通式(IV)表示的顺式噁唑啉衍生物,其中 R 是苯基或低级烷基,噁唑啉环顺式构型,形成外消旋体或光学活性物质,水解生成通式(V)表示的顺式-1-氨基茚满-2-醇,其中 NH₂ 和 OH 基顺式构型,形成外消旋体或光学活性物质。
Method of manufacturing 1-indanone
申请人:Ichikawa Gosei Chemical Co., Ltd.
公开号:EP0968991A1
公开(公告)日:2000-01-05
A method of manufacturing the useful substance 1-indanone from easily obtainable materials consists of reacting an indanyl ether represented by the generic formula
under basic conditions to give a novel substance which is the indenyl ether derivative represented by the generic formula
and hydrolyzing this to give the 1-indanone represented by the generic formula
Reactions of Alkenes, Alkynes, and Alkoxyallenes with New Polymer-Supported Electrophilic Reagents
作者:Holger Monenschein、Georgia Sourkouni-Argirusi、Katherine M. Schubothe、Thomas O'Hare、Andreas Kirschning
DOI:10.1021/ol991149m
日期:1999.12.1
Preparation of new polymer-supported electrophilic reagents that efficiently promote 1,2-haloacetoxylations of alkenes and alkoxyallenes is described. Under very mild conditions and in high yields, alkenes are transformed into or-halo acetates while alkoxyallenes lead to vinyl iodides. In contrast to these results, terminal alkynes commonly afford synthetically valuable l-iodo-alkynes.
Iodomethane Oxidation by Dimethyldioxirane: A New Route to Hypoiodous Acid and Iodohydrines
作者:Gregorio Asensio、Cecilia Andreu、Carmen Boix-Bernardini、Rossella Mello、María Elena González-Nuñez
DOI:10.1021/ol9903281
日期:1999.12.1
[GRAPHICS]The oxidation of iodomethane with dimethyldioxirane allows the generation of stable neutral solutions of hypoiodous acid in the absence of any trapping agent for iodide anion. Hypoiodous acid is trapped in situ by addition to representative olefins to give iodohydrines in good yields. The stereochemical study of the products shows the anti-stereospecific nature of the iodohydroxylation reaction.
Tiffeneau; Orechow, Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences, 1920, vol. 170, p. 467