KAl(SO4)2·12H2O: An Efficient Catalyst for the Stereoselective Synthesis of cis- Isoquinolonic Acids
摘要:
KAl(SO4)(2).12H(2)O is found to catalyze efficiently the stereoselective cyclocondensation of homophthlic anhydride with imines under mild conditions to afford the corresponding cis-isoquinolonic acids in good yields.
Iodine as a Mild, Efficient, and Cost-Effective Reagent for the Synthesis of <i>cis</i>-1-Oxo-1,2,3,4-tetrahydroisoquinoline-4-carboxylic Acids
作者:J. Yadav、B. Reddy、A. Reddy、A. Narsaiah
DOI:10.1055/s-2007-983899
日期:2007.10
Arylimines generated in situ from aromatic aldehydes and anilines undergo smooth coupling with homophthalic anhydride in the presence of 10 mol% of molecular iodine under mild and neutral conditions to afford the corresponding cis-1-oxo-1,2,3,4-tetrahydroisoquinoline-4-carboxylic acids in excellent yields with high cis selectivity. The use of iodine makes this procedure simple, convenient, and cost-effective.
A Stereoselective Three-Component Reaction: KAl(SO<sub>4</sub>)<sub>2</sub>·12H<sub>2</sub>O, an Efficient and Reusable Catalyst for the One-Pot Synthesis of <i>cis-</i>Isoquinolonic Acids
作者:Javad Azizian、Ali A. Mohammadi、Ali R. Karimi、Mohammad R. Mohammadizadeh
DOI:10.1021/jo049138g
日期:2005.1.1
KAl(SO4)2·12H2O is found to catalyze efficiently the stereoselective one-potthree-component cyclocondensation of homophthalic anhydride, aldehydes, and amines under mild conditions to afford the corresponding cis-isoquinolonic acids in good yields.
A stereoselective three-component reaction: One-pot synthesis of<i>cis</i>-isoquinolonic acids catalyzed by silica sulfuric acid under mild and heterogeneous conditions
作者:Javad Azizian、Ali A. Mohammadi、Ebrahim Soleimani、Ali R. Karimi、Mohammad R. Mohammadizadeh
DOI:10.1002/jhet.5570430129
日期:2006.1
A mild and stereoselective three-component one-step synthesis of cis-isoquinolonic acid using silica sulfuric acid as a heterogeneous catalyst from an aldehyde, amine and homophthalic anhydride in acetonitrile is described. This new method produces pure products in high yields (81-91%).
Room temperature ionic liquids promoted three-component coupling reactions: a facile synthesis of cis-isoquinolonic acids
作者:J.S Yadav、B.V.S Reddy、K Saritha Raj、A.R Prasad
DOI:10.1016/s0040-4020(03)00076-0
日期:2003.3
Roomtemperature ionic liquids are found to catalyze efficiently the three component-coupling reactions of aldehydes, amines and homophthalic anhydride under mild and convenient conditions to afford the corresponding cis-isoquinolonic acids in excellent yields with high cis-selectivity.
One-Pot Synthesis ofcis-Isoquinolonic Acid Derivativesvia Three-Component Reaction of Homophthalic Anhydride with Aldehydes and Amines using Ytterbium(III) Triflate as Catalyst
作者:Limin Wang、Jijun Liu、He Tian、Changtao Qian、Jie Sun
DOI:10.1002/adsc.200404211
日期:2005.4
Ytterbium(III) triflate efficiently catalyzes the one-pot reaction of homophthalic anhydride with aldehydes and amines at ambient temperature to afford the corresponding cis-isoquinolonic acid derivatives in good to excellent yields with high diastereoselectivity. This method provides a novel and much improved modification of the three-component reaction in terms of mild reaction conditions, short