75677-03-1Relevant articles and documents
Enantioselective synthesis of functionalized 1-benzoxepines by phenoxide ion mediated 7-endo-tet carbocyclization of cyclic sulfates
Das, Sajal Kumar,Dinda, Subal Kumar,Panda, Gautam
supporting information; experimental part, p. 204 - 207 (2009/06/21)
A new asymmetric synthesis of 2,3-disubstituted 1-benzoxepines is described. Key steps include Sharpless asymmetric dihydroxylation of trans-α,β-unsaturated esters and phenoxide ion mediated intramolecular 7-endo-tet carbocyclization of syn-2,3-dihydroxy ester derived cyclic sulfates. Wiley-VCH Verlag GmbH & Co. KGaA, 2009.
β-Hydroxy-α-tosyloxy esters as chiral building blocks for the enantioselective synthesis of benzo-annulated oxa-heterocycles: scope and limitations
Das, Sajal Kumar,Panda, Gautam
, p. 4162 - 4173 (2008/09/19)
The enantioselective synthesis of benzo-annulated oxa-heterocycles 2,3-dihydrobenzofuran and 1-benzopyran derivatives is described using β-hydroxy-α-tosyloxy esters as chiral building blocks, which are easily accessible through the regioselective α-tosyla