The Rh2(OAc)4-catalyzed reaction of methyl aryldiazoacetates with thioacetic S-acid gives exclusively the SH insertion products in high yields, while the corresponding reaction mediated by BF3·OEt2 gives O-esters. The mechanism of the reaction is discussed. ( Wiley-VCH Verlag GmbH & Co. KGaA...
ChemInform Abstract: Cyclopentane Construction by Rh2(OAc)4-Mediated Intramolecular C-H Insertion: Steric and Electronic Effects. Factors which govern the regiospecificity of cyclopentane formation by Rh(II) mediated intramolecular C-H insertion of α-diazo β-keto esters are studied....
Synthesis of oxazole and furan derivatives via Rh2(OAc)4-catalyzed C≡X bond insertion of cyclic 2-diazo-1,3-diketones with nitriles and arylacetylenesCyclic 2-diazo-1,3-diketoneelectrocyclizationfuransinsertionoxazolesA convenient and efficient procedure for the synthesis of 2-substituted-6,7-...