Multifunctional organic molecule

The selective oxidation of multifunctional organic molecules to give products of greater value is an important target in the fine chemicals industry. 

Stanton, D.T. (2000) Development of a quantitative structure-property relationship model for estimating normal boiling points of small multifunctional organic molecules. /. Chem. 

Milligan PK, Murphy B, Lennon D, Cowie BCC, Kadodwala M (1999) Probing the adsorption structure of a multifunctional organic molecule a NIXSW and NEXAFS study of 3-chlorothiophene in Cu(lll). SurfSci 430 45-54... 

The third approach of using a large proportion of biomass to produce so-called platform molecules is worth close consideration. Here, we need to learn how to make best use of a number of medium-sized, usually multifunctional, organic molecules that can be obtained relatively easily by controlled enzymatic fermentation or chemical hydrolysis. The simplest of these is (bio) ethanol others include levu-linic acid, vanillin, and lactic acid. These are chemically interesting molecules in the sense that they can be used themselves or can quite easily be converted into other useful molecules - building on rather than removing funcHonahty - as can be seen, for example, with lactic acid (Scheme 1.1-6). 

Fine-tuning of semiconductor surface electrical properties can be achieved by grafting multifunctional organic molecules onto the surface. In such molecules, one function takes care of the binding... 

Chemoselectivity is often a major issue in the reduction of multifunctional organic substrates such as substituted conjugated enones. The corresponding unsaturated alcohols have found use as building blocks for pharmaceutically active molecules for example (i-amino-a-phenylethanol is used for the synthesis of (5-blockers which are the active molecules for controlling hypertension and other cardiac disorders. 

All of the organic molecules have multifunctional natures and provide plural intermolecular interactions depending on the nature of counter component,... 

One of the most exciting areas in the field of multifunctional enzyme systems is the synthesis of a wide array of organic molecules by polyketide and nonribosomal protein synthetases. These enzymes are generally characterized by multiple subunits which themselves consist of individual domains with distinct enzymatic activities (Fig. 9.11a). The range of natural products synthesized by these mega-synthetases includes a considerable number of important antibiotics, antifungals, antitumor and cholesterol-lowering compounds, immunosuppressants, and siderophores. 

Fig. 3. Some examples of multifunctional organic linker molecules a) lactic acid, b) oxalic acid, c) adipic acid, d) azelaic acid, e) malonamide, f) oxodiacetate, g) iminodiacetate, h) oxypyridine-4-carboxylic acid, i) squaric acid, j) 1,3-benzenedicarboxylic acid, k) 1,3,5-benzenetricarboxylic acid, 1) isonicotinic acid, m) 2,6-pyridine dicarboxyUc acid, n) 3,5-pyrazoledicarboxyUc acid, o) 4,4 -dipyridyl...

Very few efficient catalytic enantioselective versions of MBH reaction were known up to 1999 despite a considerable amount of efforts devoted to the field. A breakthrough came in 1999 when Hatakeyama and coworkers discovered that p isocupreidine (P ICD) is an efficient catalyst for the MBH reaction [11]. Meanwhile, the use of small organic molecules as catalysts to perform asymmetric transformations has received increasing attention over the past decade. Therefore, chiral multifunctional orga nocatalysts have also been developed rapidly to promote successful enantioselective MBH/aza MBH processes. This chapter mainly summarizes recent advances in the design and synthesis of small organic molecules for the enantioselective aza MBH reactions from 2000. On the basis of these enantioselective aza MBH reactions, a variety of chiral amines can be easily prepared under mild conditions. 

The liver is a multifunctional organ that has several digestive functions. For example, it produces bile, which facilitates fat digestion, and it processes and distributes the food molecules absorbed in the small intestine to other parts of the body. DNA, one molecule found in cells, contains the genetic information that controls cell function. 

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