Search results for "4-OXADIAZOLE SERIES"

showing 2 items of 2 documents

The synthesis of fluorinated heteroaromatic compounds. Part 1. Five-membered rings with more than two heteroatoms. A review

2005

(2005). THE SYNTHESIS OF FLUORINATED HETEROAROMATIC COMPOUNDS. PART 1. FIVE-MEMBERED RINGS WITH MORE THAN TWO HETEROATOMS. A REVIEW. Organic Preparations and Procedures International: Vol. 37, No. 5, pp. 447-506.

13-DIPOLE ADDITION REACTIONSTETRASULFUR TETRANITRIDEChemistryOrganic ChemistryHeteroatomSUBSTITUTED 123-TRIAZOLES124-OXADIAZOLE SERIESSettore CHIM/06 - Chimica OrganicaORGANIC-CHEMISTRYEXPEDIENT ROUTEUNSATURATED NITROGEN-COMPOUNDSORGANOFLUORINE COMPOUNDSOrganic chemistryN-METHOXYTRIAZOLIUM SALTSHETEROCYCLIC-COMPOUNDS
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Experimental and DFT studies on competitive heterocyclic rearrangements. part 2: A one-atom side-chain versus the classic three-atom side-chain (Boul…

2007

The experimental investigation of the base-catalyzed rearrangements of 3-acylamino-1,2,4-oxadiazoles evidenced a new reaction pathway which competes with the well-known ring-degenerate Boulton- Katritzky rearrangement (BKR). The new reaction consists of a one-atom side-chain rearrangement that is base-activated, occurs at a higher temperature than the BKR, and irreversibly leads to the corresponding 2-acylamino-1,3,4-oxadiazoles. An extensive DFT study is reported to elucidate the proposed reaction mechanism and to compare the three possible inherent routes: (i) the reversible three-atom side-chain ring-degenerate BKR, (ii) the ring contraction-ring expansion route (RCRE), and (iii) the one…

CASCADE REARRANGEMENTPHOTOCHEMICAL APPROACHDEGENERATE EQUILIBRATION124-OXADIAZOLE SERIESMONOCYCLIC REARRANGEMENT5-MEMBERED HETEROCYCLESEXPEDIENT ROUTEPHOTOINDUCED MOLECULAR-REARRANGEMENTSGENERALIZED SYNTHESISBASIS-SETS
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