Advances in Synthetic Organic Chemistry and Methods Reported by Thomas F. DeRosa

By Thomas F. DeRosa

Advances in man made natural Chemistry and techniques suggested in US Patents offers man made directions for getting ready present and commercially major natural compounds, derivatives, and intermediates as mentioned in issued US Patents. Industries surveyed contain agrochemical, cosmetics and private care items. each one access includes large info resembling specific laboratory instructions for getting ready all chemical intermediates and characterization info. additionally, product optimization reviews, commercial instruction, and new man made tools were incorporated for chosen entries, in addition to projected learn instructions for destiny product improvement. In Advances in man made natural Chemistry and techniques mentioned in US Patents the author's sensible process allows readers to spot examine and marketplace developments, and remain updated on present advancements within the box. * offers artificial guidance for getting ready present and commercially major natural compounds, derivatives, and intermediates as said in issued US Patents * Identifies product improvement traits to aid make sure learn components * Elucidates use of the U.S. Patent and Trademark place of work database

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References 1. K-H. Schulte-Eite, US Patent 3,887,625 (June 3, 1975) 2. M. Fujisawa et al, Bull. Soc. Chem. , 55, 3555 (1982) 3. R. Fischer, US Patent 5,453,535 (September 26, 1995) ADVANCES IN SYNTHETIC ORGANIC CHEMISTRY 20 Halogenated Cinnamic Acids and Esters Thereof, Processes for the Preparation Thereof and Halogenated Aryldiazonium Salts M. Beller et al, US Patent 5,516,932 (May 14, 1996) Assignee: Hoechst Aktiengesellschaft Utility: Sun Screen Additive Patent: Reaction i- THF, tetrafluoroboric acid, sodium nitrite ii- 2-Ethylhexyl acrylate, dimethylsulfoxide, 5% palladium on carbon Experimental 1.

1: Decomposition conversions at considerably lower temperatures have been observed when the reaction was performed in protonated DMF (2). 3. The preparation of -dicarboxylic acid diesters is described (3). References 1. K-H. Schulte-Eite, US Patent 3,887,625 (June 3, 1975) 2. M. Fujisawa et al, Bull. Soc. Chem. , 55, 3555 (1982) 3. R. Fischer, US Patent 5,453,535 (September 26, 1995) ADVANCES IN SYNTHETIC ORGANIC CHEMISTRY 20 Halogenated Cinnamic Acids and Esters Thereof, Processes for the Preparation Thereof and Halogenated Aryldiazonium Salts M.

2. 438 mol) added to the reaction pot over 3 hours. Both excess thionyl chloride and the reaction solvent were removed by vacuum distillation at 100 C at 5 mm Hg. 2% yield. ACIDS AND DERIVATIVES 23 Notes 1. The author also prepared the product from Step 1 in 91% crude yield using di(hydrogenated tallow) formamide as the catalyst. 12 mol) as described in the Step 1 procedure. Tallow is a mixture consisting predominately of C16 H33 , C18 H37 and lesser amounts of C14 H29 , C15 H31 and C17 H35 hydrocarbon chains.

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