Gold-catalysed generation of diol equivalents from epoxides and their intramolecular reaction with C≡C bonds to generate bicyclicketals is presented. This reaction essentially involves the formation of an acetonide, which subsequently cyclises on the alkyne intramolecularly under gold catalysis conditions. This method could be extended to make optically pure bicyclicketals. Deuterium incorporation
Ultrasound Assisted the Synthesis of 1,3-Dioxolane Derivatives from the Reaction of Epoxides or 1,2-Diols with Various Ketones Using Graphene Oxide Catalyst
sonochemical synthesis of 1,3-dioxolane derivatives using graphene oxide catalyst by applying two methods. In the first method, we described the synthesis of 1,3-dioxolane by ring-opening of epoxides in the presence of ketones catalyzed by graphene oxide (GO) under ultrasonic irradiation. In the second sonochemical procedure, we described the synthesis of 1,3-dioxolane derivatives by the reaction of 1,2-diols
本研究的主要目标涉及使用氧化石墨烯催化剂通过两种方法合成 1,3-二氧戊环衍生物。在第一种方法中,我们描述了在由氧化石墨烯 (GO) 在超声波照射下催化的酮存在下,通过环氧化物的开环合成 1,3-二氧戊环。在第二个声化学过程中,我们描述了使用相同的 GO 催化剂通过 1,2-二醇与酮反应合成 1,3-二氧戊环衍生物。温和的反应条件、高产率、短反应时间、催化剂的可重复使用性和产物的容易分离使得所开发的方法非常有用。
Fe(III) chloride catalyzed conversion of epoxides to acetonides
作者:Sumit Saha、Samir Kumar Mandal、Subhas Chandra Roy
DOI:10.1016/j.tetlet.2008.07.147
日期:2008.10
A mild and efficient method for the preparation of acetonidesfromepoxidescatalyzed by iron(III) chlorides has been developed.
已经开发了一种温和而有效的方法,用于从氯化铁(III)催化的环氧化物制备乙炔化物。
Oxone-Aceton Mediated Metal Free Preparation of Syn-Diols
申请人:COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
公开号:US20160168114A1
公开(公告)日:2016-06-16
The present invention disclose a simple and high yielding process of Oxone-acetone mediated metal free syn-dihydroxylation of benzo fused olefins of formula (II) to obtain library of dioxolo compounds of formula (I). The invention further disclose a simple and high yielding process of Oxone-acetone mediated metal free syn-dihydroxylation of stilbene and its derivatives of formula (III) thereof. Also disclosed herein is Wacker-type oxidation of benzo-fused olefins of formula (X). The invention further disclose compounds of formula (I) which can be useful for the treatment of HIV, cancer or malaria.
Oxone-aceton mediated metal free preparation of syn-diols
申请人:Council of Scientific & Industrial Research
公开号:US10774060B2
公开(公告)日:2020-09-15
The present invention disclose a simple and high yielding process of Oxone-acetone mediated metal free syn-dihydroxylation of benzo fused olefins of formula (II) to obtain library of dioxolo compounds of formula (I). The invention further disclose a simple and high yielding process of Oxone-acetone mediated metal free syn-dihydroxylation of stilbene and its derivatives of formula (III) thereof. Also disclosed herein is Wacker-type oxidation of benzo-fused olefins of formula (X). The invention further disclose compounds of formula (I) which can be useful for the treatment of HIV, cancer or malaria.