منابع مشابه
Synthesis of functionalized ellipticinium and ellipticine derivatives via electrophilic cyclization.
An efficient methodology for the synthesis of highly functionalized ellipticinium and ellipticine derivatives starting from the corresponding 2-bromocarbazoles via an AgOTf or CuI catalyzed electrophilic cyclization of 2-alkynyl-3-carbazolylaldimines is reported.
متن کاملElectrophilic cyclization of aryldiacetylenes in the synthesis of functionalized enediynes fused to a heterocyclic core.
An efficient strategy for the synthesis of asymmetrically substituted enediynes fused to benzothiophene, benzofuran, and indole was developed. The proposed approach is based on the electrophilic cyclization of diacetylenes and Sonogashira coupling. Thus, iodocyclization of readily available ortho-functionalized (buta-1,3-diynyl)arenes was used as a direct way for the synthesis of 2-ethynyl-3-io...
متن کاملIodine-catalyzed and solvent-controlled selective electrophilic cyclization and oxidative esterification of ortho-alkynyl aldehydes.
4-Iodo-pyrano[4,3-b]quinolines and ortho-alkynyl esters were synthesized selectively from ortho-alkynyl aldehydes by an iodine-catalyzed and solvent controlled reaction.
متن کاملFacile synthesis of diiodinated dihydronaphthalenes and naphthalenes via iodine mediated electrophilic cyclization.
A facile, efficient, and general synthetic method for a wide range of 2,3-diiodinated 1,4-dihydrothiophenes and naphthalenes has been developed via the electrophilic iodocyclization of various aryl propargyl alcohols. The resulting product 2p can be used for the synthesis of a rubrene intermediate.
متن کاملAzaanthraquinone assembly from N-propargylamino quinone via iodine-induced 6-endo-dig electrophilic cyclization.
An efficient methodology taking advantage of the excellent nucleophilicity of aminoquinone to assemble the azaanthraquinone framework was developed via an iodine-induced 6-endo-dig electrophilic cyclization. Therefore, starting from N-propargylaminoquinones, various 3-iodo-1-azaanthraquinones were obtained in yields ranging from 45% to 90%. The metal-free protocol features facile installation o...
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ژورنال
عنوان ژورنال: Chemistry Journal of Moldova
سال: 2006
ISSN: 1857-1727,2345-1688
DOI: 10.19261/cjm.2006.01(1).07