The photoionization (PI) cross sections of allyl and 2-propenyl radicals to form C3H þ 5 were measured using tunable vacuum ultraviolet (VUV) synchrotron radiation coupled with photofragment translational spectroscopy. At 10 eV, the cross sections were found to be 6.2 1.2 and 5.1 1.0 Mb, respectively. Using these values, the PI efficiency curves for each radical were placed on an absolute scale...

The title compound, C(21)H(22)FNO(4), is an isomer of flumorph (systematic name 4-[3-(3,4-dimethoxyphenyl)-3-(4-fluorophenyl)-1-oxo-2-propenyl]morpholine), which was developed by Shenyang research institute of chemical industry and used as fungicide. The mol-ecule adopts a Z configuration about the C=C double bond. The dihedral angle between the two benzene rings is 73.45 (11)°.

This paper applies the new least mean squares (LMS) adaptive algorithm, which is circulantly weighted LMS (CLMS), in distributed networks based on incremental strategy. Thedistributed CLMS (dCLMS) algorithm is optimized with respect to approximate a priori knowledge of input autocorrelation signals from all nodes in the network. In comparison with dLMS, the dCLMS adaptive algorithm has faster c...

A major challenge in evolutionary computation is to find the right level of abstraction of biological development to capture its essential properties without introducing unnecessary inefficiencies. In this paper, a novel abstraction of natural development, called Compositional Pattern Producing Networks (CPPNs), is proposed. Unlike most computational abstractions of natural development, CPPNs d...

The Piper betle (Tamil: vetrilai) is a glabrous climbing vine belonging to the family Piperaceae . Essential oil from vellaikodi variety of Piper betle L leaves (Piperaceae) was extracted by hydro-distillation method in a clevenger type apparatus. The essential oil thus obtained was analyzed by gas chromatography and gas chromatography – mass spectroscopy. Sixty five components were identified ...

1-Acetoxyethyl 7-[(Z)-2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetamido]-3- [(Z)-1-propenyl]-3-cephem-4-carboxylate (BMY-28271) is an ester-type prodrug of cephalosporin for oral use. Methods suitable for large scale preparation were investigated. The yield was improved by esterification of 7-[(Z)-2-(2-aminothiazol-4-yl)-2-trityloxyiminoacetamido]cep hem-4-carboxylic acid (11) followed by removal...

An efficient synthesis of novel planar chiral ferrocene-based amido-phosphine ligands was accomplished via highly diastereoselective ortho-lithiation and subsequent in situ trapping with chlorodiphenylphosphine. The palladium complexes of mono-phosphino ferrocenecarboxamide, bis-phosphino ferrocenedicarboxamide ligands, and analogues with a ferrocenophane framework were applied in the allylic a...

Chromatographic separation of the MeOH extract from the aerial parts of Saussurea pulchella led to the isolation of seven terpenes (1-4, 11-13), and eight phenolics (5-10, 14-15). Their structures were determined by spectroscopic means to be (3S)-3-O-(3',4'-diangeloyl-beta-D-glucopyranosyloxy)-3,7-trimethylocta-1,6-diene (1), 7delta-methoxy- 4(14)- oppositen-1beta-ol (2) 4(15)- eudesmene-1beta,...