5655-26-5Relevant academic research and scientific papers
Facile synthesis of 2,3-dihydrobenzofuran-3-ylacetic acids by novel electrochemical sequential aryl radical cyclization-carboxylation of 2-allyloxybromobenzenes using methyl 4-tert-butylbenzoate as an electron-transfer mediator
Senboku, Hisanori,Michinishi, Jun-Ya,Hara, Shoji
supporting information; experimental part, p. 1567 - 1572 (2011/08/03)
Facile synthesis of 2,3-dihydrobenzofuran-3-ylacetic acids and related analogues was successfully carried out by a novel electrochemical aryl radical generation and its 5-exo cyclization followed by a carboxylation sequence of 2-allyloxybromobenzenes by u
Benzopyran derivatives and pharmaceutical compositions containing them
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, (2008/06/13)
New benzopyran derivatives of formula: STR1 in which R1 is hydrogen, halogen, hydroxy, alkoxy, nitro, amino, alkylsulphonamido, bis(alkylsulphonyl) amino or acylamino, X is nitrogen or a >CH-radical R is a radical of formula: STR2 in which A de
An Efficient Procedure for the Preparation of a Class of α-Carboxy-γ-Lactones, and Studies on their Transformation to α-Methylene Derivatives.
Bhattacharya, Sudin,Chaudhuri, Swadesh R. Ray,Chatterjee, Amareshwar
, p. 1429 - 1460 (2007/10/02)
Attempted preparation of the bromohydrins (5a-b) gave interesting results.Ring opening of epoxides (1) and bromohydrins (5), the precursors of (1), with diethyl malonate anion under refluxing benzene has been shown to be the method of choice for the preparation of lactonic esters (acids)(3) in excellent yields.Methylenation of the lactonic acids provided the α-methylene-γ-lactones (4a-d).A possible pathway for the synthesis of the cis-lactones (22a-c) has also been investigated briefly.
