2050-24-0Relevant academic research and scientific papers
CHEMICAL PROCESS FOR THE SYNTHESIS OF HERBICIDAL PYRAZOLIDINEDIONE COMPOUNDS
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Page/Page column 19; 20, (2019/06/23)
The present invention relates to a novel process for the synthesis of herbicidal pyrazolidinedione compounds. In particular, a process for the preparation of a compound of formula (I), wherein R1, R2 and R3 are as defined herein. The present invention further relates to novel intermediate compounds utilized in said process, and methods for preparing said intermediate compounds.
On the 2,3,6-Triacetyl-5-ethyltoluene and 2,3,5,6-Tetraacetyltoluene
Riemschneider, R.,Hennig, K.
, p. 835 - 838 (2007/10/02)
2,3,6-Triacetyl-5-ethyl-toluene and 2,3,5,6-tetraacetyl-toluene were prepared by permanganate oxidation of 2,6-diacetyl-3,5-diethyl-toluene.NMR and MS data are given. - Key words: o-Diacetyl Derivatives, Amino Acid Analysis, Polyacetyl-toluenes, Permanganat Oxidation, Polyacetyl-ethyl-toluenes
Process for the preparation of substituted vinylbenzyl chloride
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, (2008/06/13)
An improved continous single step vapor phase process for the preparation of substituted vinylbenzyl chloride from substituted ethyltoluene is disclosed. In this process a substituted ethyltoluene is reacted with a halogen gas in the vapor phase, at elevated temperatures via a continuous feed process. Furthermore, this process achieves halogenation followed by dehydrohalogenation in a single pass through the reactor. There is also obtained a very high total selectivity to vinylbenzyl chloride and its precursors via this continuous process.
