Synthesis of Indolylquinolines, Indolylacridines, and Indolylcyclopenta[<i>b</i>]quinolines from the Baylis–Hillman Adducts: An in Situ [1,3]-Sigmatropic Rearrangement of an Indole Nucleus To Access Indolylacridines and Indolylcyclopenta[<i>b</i>]quinolines

A simple and easy route to the synthesis of a variety of structurally diverse indolylquinolines, indolylacridines, and indolylcyclopenta­[<i>b</i>]­quinoline derivatives via the reductive cyclization of C-alkylated indole derivatives, derived from acyclic as well as cyclic Baylis–Hillman adducts with indoles, is described. An unusual in situ [1,3]-sigmatropic rearrangement of the indole nucleus was observed during the reductive cyclicization of α-regioselective B–H adducts containing indoles to produce indolylacridines and indolylcyclopenta­[<i>b</i>]­quinoline derivatives

Synthesis of Indolylquinolines, Indolylacridines, and Indolylcyclopenta[<i>b</i>]quinolines from the Baylis–Hillman Adducts: An in Situ [1,3]-Sigmatropic Rearrangement of an Indole Nucleus To Access Indolylacridines and Indolylcyclopenta[<i>b</i>]quinolines

A simple and easy route to the synthesis of a variety of structurally diverse indolylquinolines, indolylacridines, and indolylcyclopenta­[<i>b</i>]­quinoline derivatives via the reductive cyclization of C-alkylated indole derivatives, derived from acyclic as well as cyclic Baylis–Hillman adducts with indoles, is described. An unusual in situ [1,3]-sigmatropic rearrangement of the indole nucleus was observed during the reductive cyclicization of α-regioselective B–H adducts containing indoles to produce indolylacridines and indolylcyclopenta­[<i>b</i>]­quinoline derivatives

Synthesis of Indolylquinolines, Indolylacridines, and Indolylcyclopenta[<i>b</i>]quinolines from the Baylis–Hillman Adducts: An in Situ [1,3]-Sigmatropic Rearrangement of an Indole Nucleus To Access Indolylacridines and Indolylcyclopenta[<i>b</i>]quinolines

A simple and easy route to the synthesis of a variety of structurally diverse indolylquinolines, indolylacridines, and indolylcyclopenta­[<i>b</i>]­quinoline derivatives via the reductive cyclization of C-alkylated indole derivatives, derived from acyclic as well as cyclic Baylis–Hillman adducts with indoles, is described. An unusual in situ [1,3]-sigmatropic rearrangement of the indole nucleus was observed during the reductive cyclicization of α-regioselective B–H adducts containing indoles to produce indolylacridines and indolylcyclopenta­[<i>b</i>]­quinoline derivatives

Synthesis of Indolylquinolines, Indolylacridines, and Indolylcyclopenta[<i>b</i>]quinolines from the Baylis–Hillman Adducts: An in Situ [1,3]-Sigmatropic Rearrangement of an Indole Nucleus To Access Indolylacridines and Indolylcyclopenta[<i>b</i>]quinolines

A simple and easy route to the synthesis of a variety of structurally diverse indolylquinolines, indolylacridines, and indolylcyclopenta­[<i>b</i>]­quinoline derivatives via the reductive cyclization of C-alkylated indole derivatives, derived from acyclic as well as cyclic Baylis–Hillman adducts with indoles, is described. An unusual in situ [1,3]-sigmatropic rearrangement of the indole nucleus was observed during the reductive cyclicization of α-regioselective B–H adducts containing indoles to produce indolylacridines and indolylcyclopenta­[<i>b</i>]­quinoline derivatives

Synthesis of Indolylquinolines, Indolylacridines, and Indolylcyclopenta[<i>b</i>]quinolines from the Baylis–Hillman Adducts: An in Situ [1,3]-Sigmatropic Rearrangement of an Indole Nucleus To Access Indolylacridines and Indolylcyclopenta[<i>b</i>]quinolines

A simple and easy route to the synthesis of a variety of structurally diverse indolylquinolines, indolylacridines, and indolylcyclopenta­[<i>b</i>]­quinoline derivatives via the reductive cyclization of C-alkylated indole derivatives, derived from acyclic as well as cyclic Baylis–Hillman adducts with indoles, is described. An unusual in situ [1,3]-sigmatropic rearrangement of the indole nucleus was observed during the reductive cyclicization of α-regioselective B–H adducts containing indoles to produce indolylacridines and indolylcyclopenta­[<i>b</i>]­quinoline derivatives

Alcohol Mediated Synthesis of 4‑Oxo-2-aryl‑4<i>H</i>‑chromene-3-carboxylate Derivatives from 4‑Hydroxycoumarins

The unusual alcohol mediated formation of 4-oxo-2-aryl-4<i>H</i>-chromene-3-carboxylate (flavone-3-carboxylate) derivatives from 4-hydroxycoumarins and β-nitroalkenes in an alcoholic medium is described. The transformation occurs via the <i>in situ</i> formation of a Michael adduct, followed by the alkoxide ion mediated rearrangement of the intermediate. The effect of the different alcohol and nonalcohol media on the reaction was investigated