Organic molecules containing hetero

Other C/H/O Compounds.—A review by Poutsma of reactions of organic molecules containing hetero-atoms over zeolites contains a discussion of general principles as well as many examples. 

Metalations of Organic Molecules Containing Hetero Atoms... 

Organic molecules containing hetero atoms. For example sulphur is often a constituent of crude oil in the form of mercaptans or other organo-sulphur compounds. 

Rigorous analysis has demonstrated that numerous enzymes are not pure proteins. In addition to protein, they contain metal ions and/or low molecular weight nonprotein organic molecules. These nonprotein hetero constituents are denoted as cofactors which are indispensable for enzyme activity. 

The aim of this Chapter is to examine the application of well-defined N-hetero-cyclic carbene (NHC) complexes as well as the systems prepared in situ which involve free NHCs or the precursor salt for the reduction of imsaturated organic molecules such as alkynes, alkenes and carbonyl compounds. The most active complexes for such reductions contain electron-rich, late transition metals in low oxidation states. Herein, reductions useful for organic synthesis will be classified into four types aeeording to reductants used (i) hydrogenations, (ii) transfer hydrogenation, (iii) hydrosilylation and (iv) hydroboration. For examples of reduction reactions with systems containing non-classical NHC ligands, the reader is referred to Chapter 5. 

This section contains a compilation of PE data for 110 selected sulfur organic compounds. Only molecules composed of carbon, sulfur and hydrogen have been included additional data concerning derivatives and hetero analogues are often found in the references given. Handbook of Spectroscopy is also useful and contains, e.g, PE data for several derivatives of thiophene. 

It was also shown that slow evaporation of organic solution of 7c allow to selectively remove the non-encapsulated solvent molecules leaving powders of stable hexameric capsules that contain solvent molecules these were studied by magic angle spinning solid-state NMR (MAS ssNMR) [45c]. The use of different H and [13]C MAS ssNMR experiments as well as 2D hetero-nuclear... 

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