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Variety Of N (variety + of_n)
Selected AbstractsChemInform Abstract: Rhodium-Catalyzed Domino Conjugate Addition,Cyclization Reactions for the Synthesis of a Variety of N- and O-Heterocycles: Arylboroxines as Effective Carbon Nucleophiles.CHEMINFORM, Issue 40 2010Ja Ock Park No abstract is available for this article. [source] N -Functionalization of Azoles through Coupling Reactions with Alkoxydienyl and Alkoxystyryl Boronic EstersEUROPEAN JOURNAL OF ORGANIC CHEMISTRY, Issue 8 2007Annamaria Deagostino Abstract Alkoxydienyl boronates 1a and 1b and alkoxystyryl boronate 2 have been used in various copper mediated cross-coupling reactions with azoles. A variety of N -alkoxydienyl- and N -styrylazoles have been synthesized under mild conditions. The process utilizes Cu(OAc)2 in the presence of CsF in CH2Cl2 at room temperature. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007) [source] A Facile and Efficient Approach to N -Protected-,-Sulfinyl- enamines via C -Sulfinylation of Enamides and EnecarbamatesADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 11-12 2010Yinhui Li Abstract A practical method has been developed for the C -sulfinylation of enamides and enecarbamates using sodium phenylsulfinate/methyltrichlorosilane (PhSO2Na/MeSiCl3) as the sulfinylating reagent and N,N -dimethylacetamide (DMAc) as the Lewis base promoter, which allows for the preparation of a variety of N -protected-,-sulfinylenamines in high yields and good stereoselectivities. The Lewis base is found to be important for both the in situ generation of the active sulfinylating species (PhSOCl) and the sulfinylation step. [source] A variety of poly(m -benzamide)s with low polydispersities from inductive effect-assisted chain-growth polycondensationJOURNAL OF POLYMER SCIENCE (IN TWO SECTIONS), Issue 17 2006Tomoyuki Ohishi Abstract Chain-growth polycondensation of 3-(alkylamino)benzoic acid alkyl esters 1 was investigated for obtaining poly(m -benzamide)s with defined molecular weights and low polydispersities. Polymerization conditions were first studied to find that ethyl 3-(octylamino)benzoate (1b) polymerized in a chain polymerization manner in the presence of lithium 1,1,1,3,3,3-hexamethyldisilazide (LiHMDS) as a base and phenyl 4-methylbenzoate (2b) as an initiator in THF at 0 °C. The molecular weight of the polymer was controlled by the feed ratio of monomer to initiator. The polymerization of 1c,i with a variety of N -alkyl groups was then carried out under the established conditions to yield well-defined poly(m -benzamide)s, which showed higher solubility than those of the corresponding poly(p -benzamide)s. Furthermore, the 4-octyloxybenzyl group on the amide nitrogen in poly1i was removed by treatment with trifluoroacetic acid (TFA) to give N -unsubstituted poly(m -benzamide) (poly1j) with a low polydispersity, which is soluble in DMAc and DMSO, contrary to the para-substituted counterpart. © 2006 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 44: 4990,5003, 2006 [source] Synthesis and Biological Activity of Some 1,3-Dihydro-2H -3-benzazepin-2-ones with a Piperazine Moiety as Bradycardic AgentsARCHIV DER PHARMAZIE, Issue 2 2010Hong-Yu Liang Abstract A series of 1,3-dihydro-2H -3-benzazepin-2-ones with a piperazine moiety were designed and synthesized by treating the common intermediate of 1,3-dihydro-7,8-dimethoxy-3-[3-(1-piperazinyl)propyl]-2H -3-benzazepin-2-ones with a variety of N -aryl-2-chloroacetamides and acyl chlorides. Their structures have been characterized by 1H-NMR, MS, and elemental analysis. The title compounds were evaluated for their bradycardic activity in vitro. Most of the synthesized compounds exhibited some vasorelaxant activity and heart-rate-reducing activity with bradycardic potency. [source] | ||||||||||