By Thomas F. DeRosa
Advances in artificial natural Chemistry and strategies pronounced in US Patents offers artificial directions for getting ready present and commercially major natural compounds, derivatives, and intermediates as said in issued US Patents. Industries surveyed comprise agrochemical, cosmetics and private care items. every one access comprises wide details similar to particular laboratory instructions for getting ready all chemical intermediates and characterization facts. additionally, product optimization reviews, commercial coaching, and new man made equipment were incorporated for chosen entries, in addition to projected examine instructions for destiny product improvement. In Advances in man made natural Chemistry and strategies said in US Patents the author's useful process allows readers to spot examine and marketplace developments, and remain up to date on present advancements within the box. * presents man made guidance for getting ready present and commercially major natural compounds, derivatives, and intermediates as mentioned in issued US Patents * Identifies product improvement tendencies to aid confirm learn components * Elucidates use of the united states Patent and Trademark workplace database
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Methods for preparing skikimic acid (XI) from (−)-quinic acid are described (2). 9. Other methods for preparing ester and diamine analogues of the current invention are disclosed (3). References 1. M. Kent et al, US Patent 6,204,398 (March 20, 2001) 2. H-J. Mair, US Patent 6,130,354 (October 10, 2000) 3. U. M. Friedman et al, US Patent 6,204,391 (March 20, 2001) Assignee: The Regents of the State of California Utility: Antiviral and Virucide to Inhibit Human Retroviral Replication Patent: Reaction i- Carbon tetrachloride, aluminum chloride, hydrochloric acid, sodium hydroxide ii- Ethyl alcohol, hydrazine, acetic acid iii- THF, nickel peroxide, sodium hydroxide, ethyl alcohol iv- C60 Buckminsterfullerene, toluene, THF, 1,2-dichlorobenzene v- Acetic acid, hydrochloric acid vi- Succinic anhydride, pyridine 33 ADVANCES IN SYNTHETIC ORGANIC CHEMISTRY 34 Experimental 1.
The product mixture consisted of three components in a 4:1:1 ratio, respectively, (IV), (V), and, (VI). Allyl, (V), was removed by selective solubility in ethyl acetate containing pyrrolidone; a 4:1 ratio of (IV) and (VI) was used directly in the trans-ketalization reaction. 5. Two isomeric pentyl ethers, (VII), and, (VIII), were also formed although only (VII) was epoxidized. 32 ADVANCES IN SYNTHETIC ORGANIC CHEMISTRY 6. Two isomeric hydroxyl azides, (VIII), and, (IX), were produced when epoxide intermediates were reacted with sodium azide.
In a subsequent investigation by the author, cis- and trans-4-(2,2,3,3-tetrafluoropropoxy)cinnamonitrile derivatives were prepared (3). References 1. S. Kuami et al, US Patent 5,093,515 (May 3, 1992) 2. S. Davenport et al, US Patent 4,346,248 (August 24, 1984) 3. M. D. Graves et al, US Patent 6,206,819 (March 27, 2001) Assignee: Rohm and Haas Company Utility: Acetyl Chlorination Catalyst Patent: Reaction i- Formamide, hydrochloric acid, cumene ii- Pridine, n-Butyl ether, thionyl chloride Experimental 1.