Synthesis intermediates

BMI intermediate synthesis [COMPOSITE MATERIALS - POLYTffiR-MATRLO - THERMOSETS] (Vol 7) -coumarin reduction [COUMARIN] (Vol 7)... 

Available lactone (5) replaces (4) in the synthesis there is no need to isolate any of the intermediates. Synthesis " ... 

The chemistry of a-haloketones, a-haloaldehydes and a-haloimines Nitrones, nitronates and nitroxides Crown ethers and analogs Cyclopropane derived reactive intermediates Synthesis of carboxylic acids, esters and their derivatives The silicon-heteroatom bond Syntheses of lactones and lactams The syntheses of sulphones, sulphoxides and cyclic sulphides... 

Scheme 3.26 Intermediates synthesis for the synthesis of tertiary methylamines (184) via Mannich reaction [285].

Figure 1.37 Avir intermediate synthesis by ketone hydrogenation.

R. Herranz, J. Castro-Picliel, and T. Garcia-Ldpez, Tributyltin cyanide, a novel reagent for the stereoselective preparation of 3-amino-2-hydroxy acids via cyanohydrin intermediates, Synthesis p. 703 (1989). 

J. Defaye and J. M. G. Fernandez, Difructose dianhydrides as synthetic intermediates, Synthesis of 3,6-anhydro-keto-D-fructose, Tetrahedron Asymmetry, 5 (1994) 2241-2250. 

F. W. Lichtenthaler, P. Jarglis, and K. Lorenz, Convenient one-pot conversion of alcohols into esters via hemiacetal intermediates, Synthesis, (1988) 790-792. 

Konno, H. Toshiro, E. Hinoda, N. An epoxide ring-opening reaction via a hyperva-lent silicate intermediate synthesis of statine. Synthesis 2003, 2161-2164. 

In addition to the search for ways of creating economic technology for natural gas processing to methanol with an intermediate synthesis gas stage, recent investigations have been aimed at direct methane oxidation by pure oxygen or in air [120, 121],... 

This measure considers always an ideal process, but in contrast with the stoichiometric yield, takes into account the quantitative contribution of other molecules. For this reason it is equivalent to an atomic utilization . This parameter is constant over a synthesis route and as a result a measure of material utilization. Thus, it is the maximum productivity to be expected. A lower BA, value means more waste in intermediate synthesis steps and a signal to improve the chemistry, by fewer intermediate steps or better selectivity. 

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