نتایج جستجو برای: carbamates

تعداد نتایج: 2117  

2010
Amirah Faizah Muthalib Ibrahim Baba Seik Weng Ng

The dithio-carbamate anions in the title compound, [Sn(C(6)H(5))(2)(C(4)H(8)NS(2))(2)], chelate to the Sn(IV) atom, which is six-coordinated in a skew-trapezoidal-bipyramidal geometry. The mol-ecule lies across a twofold rotation axis.

2012
Juliana Oliveira Pasiani Priscila Torres Juciê Roniery Silva Bruno Zago Diniz Eloisa Dutra Caldas

In this study, the knowledge, attitudes and practices regarding pesticide use and the levels of exposure of farmers and residents to organophosphorous and/or carbamates pesticides were evaluated in two rural settings in Brazil. A questionnaire was completed by 112 farm workers aged ≥18 years. Almost all farmers acknowledged that pesticides were potentially harmful to their health (87.5%); howev...

2012
Li-Si Huang Fei He Hui Huang Xiao-Yong Zhang Shu-Hua Qi

Five carbamate derivatives, obtucarbamates C and D (1, 2), dimethyl ((carbonylbis(azanediyl))bis(2-methyl-5,1-phenylene))dicarbamate (3), obtucarbamates A and B (4, 5), and four aromadendrane-type sesquiterpenoids, (+)-4β-N-methenetauryl-10β-methoxy-1β,5α,6β,7β-aromadendrane (6), (-)-4β-N-methenetauryl-10β-methoxy-1β,5β,6α,7α-aromadendrane (7), (-)-4α,10β-aromadendranediol (8), (+)-4β,10β-aroma...

2009
Daniel Robert Swale Sally L. Paulson Donald E. Mullins Daniel R. Swale James Mutunga Hillary Hudson Ying Jiang Dawn Wong

Journal: :Japanese journal of pharmacology 1966
T Ban C Nagata

伴 隆志 ・永田 親 義 The inhibition of cholinesterase by some of carbamates has attracted the attention of many researchers in relation to the clinical usefulness (1) and insecticidal activity (2, 3) of the compounds. In this paper the author's chief concern is mainly devoted to investigating the rela tionship between the electronic structure of several structurally related carbamate type cholinesteras...

2008
Guang-Ming Sang Shi-Neng Luo Jian-Guo Lin Hai-Lin Yang Yong-Mei Xia

In the title compound, C(11)H(14)N(2)O(5), the nitro group is approximately coplanar with the benzene ring, making a dihedral angle of 4.26 (17)°. The dihedral angle between the methyl-carbamate group and the benzene ring is 72.47 (6)°. There is a strong inter-molecular N-H⋯O hydrogen bond between the N and O atoms from adjacent methyl-carbamate groups, forming a one-dimensional network along t...

2013
Hong-Ju Ma Meng-Han Xu Jian-Hua Zhang Jian-Hong Li Jun Ning

In the title compound, C19H18F3NO4, which was designed and synthesized as a dual-site inhibitor of insect AChE (acetyl-cholinesterase), the dihedral angle between the methyl-carbamate group and the benzene ring is 72.47 (6)°. In the crystal, inversion dimers are linked by pairs of N-H⋯O hydrogen bonds.

Journal: :Dalton transactions 2011
Tanja Voss Gerald Kehr Roland Fröhlich Gerhard Erker

The tetrahydroazepine-annulated [3]ferrocenophane carbamate (4) was synthesized by two different linear routes starting from the readily available α-dimethylamino[3]ferrocenophane-ortho-carbaldehyde rac-6. The carbamate directed lithiation of 4 resulted in a selective attack at a (Cp)C-H bond at the higher substituted "lower" [3]ferrocenophane Cp-ring to eventually yield the respective ester (1...

2008
Anna Kropidłowska Ilona Turowska-Tyrk Barbara Becker

In the crystal structure of the title complex, [Ni(C(5)H(8)NS(2))Cl(C(14)H(15)P)], the Ni atom is coordinated by an S,S'-chelating dithio-carbamate, a chloride and a diphenyl-ethyl-phosphine ligand in a distorted square-planar arrangement.

2009
Le-Qing Fan Ji-Huai Wu Yun-Fang Huang Seik Weng Ng

The copper(II) atom in the title compound, [Cu(C(5)H(10)NS(2))I(C(12)H(8)N(2))], is chelated by the N-heterocycle and the dithio-carbamate anion in a slightly distorted tetragonal coordination. The tetragonal-pyramidal coorination is completed by the iodine atom in the apical position. One ethyl group is disordered over two positions with site occupancies of 0.31 (2) and 0.69 (2).

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