Disclosed are N-heterocyclic compounds of the general formula (I) as well as their salts and N-oxides, in which the variables are as follows, and the R?1 to R26 groups, independently of one another, are hydrogen, cyano, nitro, halogen, aminocarbonyl, methylsulfonyl, alkyl, alkyl halide,...
This group of n-heterocyclic compounds can be used effectively in many types of soil-cement, soil-lime, cement mortar and concrete systems, including, for example, latex cements. The following examples illustrate the present invention and the manner by which it can be practiced but, as such, ...
ChemInform Abstract: Polycyclic N‐Heterocyclic Compounds. Part 54. Ring‐Cleavages and Ring‐Closures of N‐(Benzo[h]quinazolin‐4‐yl)amidine and Its Amide Oxime Derivatives with Hydroxylamine.oxadiazole derivativesring closure reactionsChemInform is a weekly Abstracting Service, delivering concise ...
ChemInform Abstract: Polycyclic N-Heterocyclic Compounds. Part 48. Syntheses of Furo(2,3-h)( 1,6)naphthyridine and Imidazo(or Pyrimido)(2,1-f)(1,6)naphthyridines with Rearrangementfused pyridine derivativesring closure reactionsrearrangementsChemInform is a weekly Abstracting Service, delivering ...
The invention comprises perfluoro-2,3,4,5-tetrahydropyridine and perfluoro(N-methyl-pyrrolidine) and a procees for the preparation of said compounds by the pyrolysis of undecafluoropiperidine at 200 to 900 DEG C. and a pressure in excess of 500 mm. Hg. Perfluoro(n-butylidene methylamine) is...
The invention relates to compounds of formula (I) in which D is a radical of the formula (II) or (III): X is N or CR X is N or CR X is N or CR B is a radical of the formula (VIII) and R -R X -X and R'-R '' 'have the meanings given in the claims, processes for...
CuNHC Complex for Chan‐Evans‐Lam Cross‐Coupling Reactions of N‐Heterocyclic Compounds and Arylboronic Acids An efficient copper(II) N‐heterocyclic carbene (NHC) complex with an NCN coordination mode was optimized to catalyze the Chan–Evans‐Lam (CEL) cross‐cou... Bhupendra Adhikari,Mohsen ...
Nitrogen-containing heterocyclic compounds are prepared by the Lewis acid catalyzed cyclization of a diamino-substituted aliphatic compound of the formula R2 N-(CR'2)x</su
The synthesis, chemistry and electronic properties of NHGe and these related compounds are reviewed and reference is made to the homologous NHC. 关键词: N-heterocyclic germylenes amidinates aminotroponiminates β-diketiminates DOI: 10.1016/j.ccr.2003.12.004 被引量: 193 年份: 2004 ...
[Isothiocyanic acid ester of aromatic N-heterocyclic compounds. 2. On therapeutic agents with isothiocyanate groups]. 来自 NCBI 喜欢 0 阅读量: 44 作者:OE Schultz,KK Gauri 摘要: SCHULTZ OE, GAURI KK.关键词: HETEROCYCLIC COMPOUNDS/chemistry THIOCYANATES/chemistry ...