Model Studies of the Doebner Modified Knoevenagel Condensation

Previous work1-6 on an initial model system for the synthesis of polyaromatic dyes for potential use in solar energy collection used the Doebner modified Knoevenagel condensation. This project is continuing the work on this approach to establish its viability

Synthesis and antibacterial activities of Diarylpyrazolo [3,4-b]pyridines II1

Synthesis of various 4,6-diarylpyrazolo[3,4-b]pyridines, from aminopyrazoles and 1,3-dicarbonylcompounds or by a Doebner method are reported

Bicrossproduct structure of κ\kappa-Poincare group and non-commutative geometry

We show that the $\kappa$-deformed Poincar\'e quantum algebra proposed for elementary particle physics has the structure of a Hopf agebra bicrossproduct U(so(1,3))\cobicross T. The algebra is a semidirect product of the classical Lorentz group $so(1,3)$ acting in a deformed way on the momentum sector $T$. The novel feature is that the coalgebra is also semidirect, with a backreaction of the momentum sector on the Lorentz rotations. Using this, we show that the $\kappa$-Poincar\'e acts covariantly on a $\kappa$-Minkowski space, which we introduce. It turns out necessarily to be deformed and non-commutative. We also connect this algebra with a previous approach to Planck scale physics.Comment: 12 pages. Revision: minor typos correcte

How sharp are PV measures?

Properties of sharp observables (normalized PV measures) in relation to smearing by a Markov kernel are studied. It is shown that for a sharp observable $P$ defined on a standard Borel space, and an arbitrary observable $M$, the following properties are equivalent: (a) the range of $P$ is contained in the range of $M$; (b) $P$ is a function of $M$; (c) $P$ is a smearing of $M$.Comment: 9 page

One-Pot Three Component Synthesis of N-Arulquinolines

N-arlquinolines derivatives are an important class of heterocyclic compounds having important pharmaceutical and biological activities. These compounds are used as antiplasmodial, intrinsic, cytotoxic, functional, antibacterial, antiproliferative, antimalarial, and even anti-cancer. The current methods of synthesis for these compounds such as; Skraup, Doebner-Von Miller, Conrad Limbach, Combes and Pfitzinger are unappealing to many. These methods are either costly, dangerous, time consuming or inefficient. In this presentation we report 1,4-Diazabicyclo[2.2.2]octane known as DABCO as an efficient catalyst for one-pot multicomponent synthesis of 2-Amino-7-7-dimethyl-5-oxo-1,-diphenyl- 1,4,5,6,7,8-hexahydroquinoline-3-carbonitriles from aromatic aldehydes, malononitrile, and 3- aryl-5,5-dimethyl-cyclohex-2-en-1-ones in DMF at room temperature. This procedure is an efficient and environmentally friendly approach for preparing N-arlquinonlines derivatives that offers many other advantages over previous methods such as: short reaction time, high yielding products, low cost, a high level of ease, and straight forward work-up. Different aromatic aldehydes have been used to show the general catalytic application of DABCO for this reaction. All products were completely characterized via spectroscopy methods, such as IR and NMR as well as melting points. Different features of this reaction will be presented at the symposium.http://opus.ipfw.edu/stu_symp2014/1026/thumbnail.jp

Study on High-efficiency and Low-cost Process Development of Ethoxyquin

乙氧基喹啉（EMQ）作为一类性能优良、价格低廉的酮胺类抗氧化剂，广泛应用于饲料抗氧化、橡胶防老化、水果保鲜等领域，是目前饲料行业首选的抗氧化剂。国内外报道的EMQ合成工艺存在诸多不足，如反应时间长、后处理工序繁杂、工艺成本高等。针对目前以对氨基苯乙醚和丙酮为原料生产EMQ工艺存在的不足，本论文提出以原料对氨基苯乙醚的转化率及单耗、产物EMQ的选择性及产物收率为优化目标，通过考察各种因素对反应结果的影响，选择较佳的EMQ合成工艺进行优化，确定最适宜的合成工艺条件，在提高产物收率的同时降低对氨基苯乙醚单耗，从而降低工艺成本，简化工艺流程，为开发工业化高效生产EMQ工艺奠定基础。 在以对氨基苯乙醚...As a preferred antioxidant in industries of feed, ethoxyquin (EMQ) is widely applied in many industries with excellent performance and low cost. Considering the defects in the synthetic process of EMQ as reported, for instance, long reaction time, complex post-treatment and high process cost, a simple, low-cost and optimal synthetic process of EMQ with p-phenetidine and acetone is proposed by inve...学位：工程硕士院系专业：化学化工学院_工程硕士(化学工程)学号：2062013115147

Twistor Theory and Differential Equations

This is an elementary and self--contained review of twistor theory as a geometric tool for solving non-linear differential equations. Solutions to soliton equations like KdV, Tzitzeica, integrable chiral model, BPS monopole or Sine-Gordon arise from holomorphic vector bundles over T\CP^1. A different framework is provided for the dispersionless analogues of soliton equations, like dispersionless KP or $SU(\infty)$ Toda system in 2+1 dimensions. Their solutions correspond to deformations of (parts of) T\CP^1, and ultimately to Einstein--Weyl curved geometries generalising the flat Minkowski space. A number of exercises is included and the necessary facts about vector bundles over the Riemann sphere are summarised in the Appendix.Comment: 23 Pages, 9 Figure