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The three-component Povarov reaction of aldehydes, anilines, and benzyl N-vinylcarbamate in the presence of 0.1 equiv of chiral phosphoric acid afforded cis-2,4-disubstituted tetrahydroquinolines, e.g. I, in good yields and excellent enantiomeric excesses. ...
This paper presents a game-theoretic model of a liberalized railway industry in which train operation and ownership of infrastructure is fully vertically separated. The objective of this paper is to analyze how the regulatory agency will socially optimal s ...
We present an integrated schedule planning model where the decisions of schedule design, fleeting and pricing are made simultaneously. Pricing is integrated through a logit demand model where itinerary choice is modeled by defining the utilities of the alt ...
In this paper we study the simultaneous optimization of berth allocation and quay crane assignment in seaport container terminals. We propose a model based on an exponential number of variables that is solved via column generation. An exact branch-and-pric ...
We present a model where we integrate schedule design, fleet assignment and demand models to maximize the profit of an airline. The objective of the study is to identify the challenges behind the integration of demand modeling into the optimization model a ...
We extend the standard specification of the market price of risk for affine yield models, and apply it to U.S. Treasury data. Our specification often provides better fit, sometimes with very high statistical significance. The improved fit comes from the ti ...
When treated with KOCMe3 in THF, fluorohydrin p-tosylates afford fluoro olefins, e.g., Z- or E-Me(CH2)4CF:CH(CH2)4Me, in high yields. Fluorohydrins are readily and stereoselectively accessible by antiperiplanar addn. of HF to oxiranes. Terminal epoxides gi ...
Starting with 1,1,1-trifluoroacetone, 3-(trifluoromethyl)-1-(trimethylsilyloxy)-1,3-butadiene has been prepd. as a mixt. of (Z) and (E) isomers. The diene undergoes [4 + 2] cycloaddn. reactions with a variety of dienophiles affording trifluoromethyl-substi ...
Treatment of olefins with an excess of di-tert-Bu azodicarboxylate, an equimolar amt. of PhSiH3, and a catalytic amt. of a Co(III) catalyst afforded the Markovnikov hydrazide products, e.g., I, for a broad range of olefins, in good yields. [on SciFinder (R ...
The objective of this paper is to present the operating and hedging analysis of a hydroelectric system in a non-hydro dominated market using a specifically-developed tool for operating and contracting decisions. Hydropower companies are likely to face stoc ...