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An abstract of the article "Formal [4 + 2]-Annulation of Vinyl Azides with N-Unsaturated Aldimines" by X. Zhu and colleagues is presented.

Propargylic alcohols of type (I) and (V) having an ortho-hydroxyphenyl substituent undergo a BF3-promoted reaction with azide to yield 2-alkylated benzoxazoles (II) and (VI). [ABSTRACT FROM AUTHOR]

Oxidative radical perfluoromethylation of biarylvinyl azides generates iminyl radicals, which subsequently cyclize to produce various aza-polycyclic aromatic compounds. [ABSTRACT FROM AUTHOR]

By proper choice of gold-catalyst and solvent most 2-ethynylbenzyl ethers can be cyclized to either 1-indanones or 2-indanones in good to excellent selectivity. [ABSTRACT FROM AUTHOR]

The obtained iodo-pyridones and -pyrrolones can be easily further converted, for example via Suzuki cross-coupling. [ABSTRACT FROM AUTHOR]

The article presents information on orthogonal aerobic chemical conversion of n-benzyl amidoximes to 1,2,4-oxadiazoles or quinazolinones and also presents several oxadiazole derivatives chemical structure.

This method opens access towards highly substituted isoxazole and pyrazole skeletons under transition metal-free conditions. [ABSTRACT FROM AUTHOR]

Application of this method is demonstrated in total syntheses of compounds XI and XII. [ABSTRACT FROM AUTHOR]

An efficient three-step synthesis of nonenolide (V), a lactose with coconut-like and rancid odour, is given. [ABSTRACT FROM AUTHOR]

An unprecedented chemical reactivity of N-alkenyl amidines under the presented conditions is described. [ABSTRACT FROM AUTHOR]

An abstract of the article Lewis Acid Catalyzed Cyclization of Propargylic Alcohols with 2-Vinylphenol by Heng-Rui Zhang, Xin-Yu Zhu,and Xue-Yuan is presented.

An abstract of the article "Facile Synthesis of Carbazoles via a Tandem Iodocyclization with 1,2-Alkyl Migration and Aromatization" by J. Wang and colleagues is presented.

Under optimized conditions the reaction of arylpropiolamides and esters with sodium trifluoromethanesulfinate affords spirotrienones in moderate yields. [ABSTRACT FROM AUTHOR]

Optimized conditions to obtain 1- or 3-aryl-2-methoxyindenes (II) and (IV), resp., from intramolecular carboalkoxylation reactions of 2-ethynylbenzyl ethers (I) are established. [ABSTRACT FROM AUTHOR]

The synthesis of 3-azabicyclo[3.1.0]hex-2-enes from N-allyl enamine derivatives is developed. [ABSTRACT FROM AUTHOR]

The first protocol involving a Friedel-Crafts-type reaction combined with an intramolecular electrophilic ipso-iodocyclization of title propiol amides is developed. [ABSTRACT FROM AUTHOR]

A new method for the amination of aliphatic C-H bonds of N-alkylamidines in the presence of PhI(OAc)2 and K3PO4 is described that utilizes Cu(OAc)2 as the catalyst. [ABSTRACT FROM AUTHOR]

An abstract of the article "Copper-Catalyzed Difluoromethylation of Propargylamide-Substituted Indoles: Synthesis of Mono- and Bis-Difluoromethylated Indoloazepinone Derivatives" by J.-Y. Hu, Y.-C. Yang, and Y.-M. Liang is presented.

This new cyclization process proceeds in water under metal-free conditions to afford a series of sulfonylated products in good yields with C-S and C-I bond formation in one step. [ABSTRACT FROM AUTHOR]

A new method for the synthesis of CF3-substituted spirocyclic compounds containing a unique quaternary carbon center from readily available starting materials is developed. [ABSTRACT FROM AUTHOR]

The presented approach can be scaled up to gram quantities in satisfactory yields. [ABSTRACT FROM AUTHOR]

The title compounds are obtained from unprotected homopropargylic alcohols with high regioselectivity. [ABSTRACT FROM AUTHOR]

An abstract of the article "Copper-Catalyzed Three-Component Cyanotrifluoromethylation/Azidotrifluoromethylation and Carbocyclization of 1,6-Enynes" is presented.

The article presents the chemical structure for synthesis of halogenated spiroketals.