51666-97-8Relevant academic research and scientific papers
Synthesis of α-Fluoromethyl Ketones via Allene Epoxides
Kabat, Marek M.
, p. 435 - 440 (1989)
α-Fluoromethyl ketones are formed via the reaction of allene epoxides with tetrabutylammonium fluoride trihydrate (TBAF*3H2O) in THF.
Ultrasound-Promoted Cycloadditions in the Synthesis of Salvia miltiorrhiza Abietanoid o-Quinones
Lee, Junning,Snyder, John K.
, p. 4995 - 5008 (2007/10/02)
The ultrasound-promoted Diels-Alder reaction of 3-methyl-4,5-benzofurandione with appropriately substituted vinylcyclohexenes has led to the synthesis of tanshinone IIA, nortanshinone, tanshindiol B, methyl tanshinonate, and tanshinone IIB, biologically active metabolites of the Chinese traditional medicine, Dan Shen, prepared from the roots of Salvia miltiorrhiza Bunge.Methyltanshinquinone, the dihydro derivative of the natural product, methylenetanshinquinone, was similarly prepared.The effect of ultrasound in promoting the cycloadditions parallels that of high pressure and improved the regioselectivity in favour of the natural isomers.
SILICON IN ORGANIC SYNTHESIS-17 CYCLOPENTANNULATION BY THERMOLYSIS OF (1-TRIMETHYLSILYLCYCLOPROPYL)ETHYLENES-THE 1-TRIMETHYLSILYLCYCLOPROPYL ANION
Paquette, Leo A.,Wells, Gregory J.,Horn, Keith A.,Yan, Tu-Hsin
, p. 913 - 924 (2007/10/02)
Several alternatives for preparing (1-trimethylsilylcyclopropyl)ethylenes have been examined.Although 1-lithio-1-(trimethylsilyl)ethylene does add satisfactorily to carbonyl compounds and the subsequent Simmons-Smith cyclopropanation provides the desired
