31676-43-4Relevant articles and documents
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Parham et al.
, p. 3775,3778 (1970)
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A three-step, highly enantioselective synthesis of (R)-2-methyl tryptophane ethyl ester: Comparison with chemical resolution
Solladie-Cavallo, Arlette,Schwarz, Johanes,Mouza, Cyrille
, p. 3861 - 3864 (1998)
(R)-2-Methyltryptophan ethyl ester, (R)-2, having an enantiomeric purity >,=96% was obtained in 3 steps and using (SSS)-hydroxypinanone, 1, as the recoverable chiral auxiliary. The synthesis of the alkylating agent, 5a, was improved (to a reproduceble 55% overall yield from 2,3-dimethylindole). The resolution of racemic-2 through chromatographic separation of the corresponding iminoester derived from (RRR)-1 also proved to be easy and efficient (-25% yield).
Regioselective hydroarylation reactions of C3 electrophilic N-acetylindoles activated by FeCl3: An entry to 3-(Hetero)arylindolines
Beaud, Rodolphe,Guillot, Regis,Kouklovsky, Cyrille,Vincent, Guillaume
supporting information, p. 7492 - 7500 (2014/06/23)
A method for the direct and rare umpolung of the 3 position of indoles is reported. The activation of N-acetylindole with iron(III) chloride allows the C-H addition of aromatic and heteroaromatic substrates to the C2-C3 double bond of the indole nucleus to generate a quaternary center at C3 and leads regioselectively to 3-arylindolines. Optimization, scope (50 examples), practicability (gram scale, air atmosphere, room temperature), and mechanistic insights of this process are presented. Synthetic transformations of the indoline products into drug-like compounds are also described.
Rh(III)-catalyzed tandem C-H allylation and oxidative cyclization of anilides: A new entry to indoles
Cajaraville, Ana,Lopez, Susana,Varela, Jesus A.,Saa, Carlos
supporting information, p. 4576 - 4579 (2013/09/24)
RhIII-catalyzed tandem C-H allylation and oxidative cyclization of anilides with allyl carbonates in the presence of a slight excess of AgSbF6 salt and Cu(OAc)2 as oxidant affords easy, economical access to important bioac