نتایج جستجو برای: synthesis procedures

تعداد نتایج: 659064  

Journal: :Catalysts 2022

A few months before the COVID-19 pandemic, Pierre Vogel and Kendall N. Houk published with a new textbook Wiley-VCH, “Organic Chemistry: Theory, Reactivity, Mechanisms in Modern Synthesis”, foreword from late Roberts H. Grubbs. The book demonstrates how catalytic processes dominate all fields of modern organic chemistry synthesis, invention combines thermodynamics, kinetics, spectroscopy, quant...

Journal: :iranian journal of catalysis 2015
malek taher maghsoodlou nourallah hazeri elham fereidooni sajjad salahi nasrin mahmoudabadi

facile and versatile procedures have been explored for the synthesis of tetrahydropyridines and 2,3-dihydroquinazolin-4(1h)-ones. these protocols employ the one-pot multi-component condensation of arylaldehydes and aromatic amines with β-keto esters and isatoic anhydride in chloroacetic acid, respectively. the reactions proceeded smoothly to generate the corresponding products in high yield. we...

Journal: :Bioorganic & medicinal chemistry letters 2012
Rebecca R Midtkandal Philip Redpath Samuel A J Trammell Simon J F Macdonald Charles Brenner Marie E Migaud

2-Deoxy-C-nucleosides are a subcategory of C-nucleosides that has not been explored extensively, largely because the synthesis is less facile. Flexible synthetic procedures giving access to 2-deoxy-C-nucleosides are therefore of interest. To exemplify the versatility and highlight the limitations of a synthetic route recently developed to that effect, the first synthesis of 2-deoxy benzamide ri...

2000
Alessandro Avellone Mauro Ferrari Camillo Fiorentini

In this paper we will present a formal framework, based on the notion of extraction calculus, which has been successfully applied to define procedures for extracting information from constructive proofs. Here we will apply such a mechanism to give a proof-theoretic account of SLD-derivations. We show how proofs of suitable constructive systems can be used in the context of deductive synthesis o...

Journal: :Journal of Chemical Engineering & Process Technology 2016

Journal: :Bio-medical materials and engineering 2014
Zhe Shen Lili Wang Yaqian Zhao Qinping Zhao Meng Zhao

Skin synthesis is important for the actual appearance of digital human models. However, it is difficult to design a general algorithm to efficiently produce high quality results. This paper proposes a parallel texture synthesis method for large scale skin of digital human models. Two major procedures are included in this method, a parallel matching procedure and a multi-pass optimizing procedur...

2002
Alan Mishchenko Robert K. Brayton

Optimization algorithms used in binary multi-level logic synthesis, such as network simplification, logic extraction, and resubstitution, have been treated independently and did not share computational procedures. Using multi-valued logic synthesis, some common conceptual and computational cores underlying these algorithms can be identified. We present an overview of a Boolean paradigm in multi...

Journal: :Investigative ophthalmology & visual science 1993
W B Rathbun A J Schmidt A M Holleschau

PURPOSE To assess the activities of the two enzymes required for glutathione synthesis, gamma-glutamylcysteine synthetase and glutathione synthetase, in various forms of human cataracts. METHODS The Cooperative Cataract Research Group cataract classification method and standard enzyme assay procedures were used. RESULTS An inverse relationship was shown between residual activity of each of ...

1999
Kim E. A. Silverman Victoria Anderson Jerome R. Bellegarda Kevin A. Lenzo Devang Naik

The design principles and collection procedures behind a speech synthesis corpus directly impact the performance of the resulting text-to-speech system. This paper describes the design and collection of the Victoria corpus, created to support speech synthesis research and development at Apple Computer. This corpus is composed of ve constituent parts, each designed to cover a speci c aspect of s...

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