19893-77-7Relevant academic research and scientific papers
METHOD FOR MANUFACTURING ESTER
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Paragraph 0070; 0074; 0090, (2013/08/28)
The present invention relates to a method for manufacturing an ester from a ketone or an aldehyde, which is a reactive substrate, by a Baeyer-Villiger oxidation reaction using hydrogen peroxide, and in this method, as a catalyst, M(BAr4)n, which is a metal borate, is used (M represents an alkali metal or an alkaline earth metal; Ar represents an aryl; and n is the same number as the valence of M). For example, when cyclohexanone was used as the reactive substrate, and Sr[B(3,5-CF3C6H3)4]2 was used as the catalyst, ε-caprolactone was obtained at an isolated yield of 82%.
Lead Tetraacetate Reaction on Dicarboxylic Acids: Synthesis of Some Novel Longifolene-derived Oxygen Heterocycloes
Shitole, H.R.,Deshpande, R.P.,Nayak, U.R.
, p. 418 - 423 (2007/10/02)
The lead tetraacetate (LTA) reaction on three longifolene-derived 1,4-dicarboxylic acids, viz. α-longiforic acid (5), β-longiforic acid (6) and longicamphoric acid (7) has lead to the formation of four novel oxygen heterocycles 25-28.The transformation involves an interesting sequence, lactone - diol - cyclic ether.In the case of the monoterpenic camphoric acid (8), however, the diol (23) from the LTA-derived campholytolactone (13) fails to give the ether (29) on treatment with tosyl chloride in pyridine, unlike in the earlier four cases 15-18.
