By Don R. Baker, Joseph G. Fenyes, George P. Lahm, Thomas P. Selby, Thomas M. Stevenson
This 30-chapter quantity is an entire reference ebook that comes with present updates and tendencies within the box of agrochemicals. subject matters within the e-book comprise herbicides in agriculture, regulate of bugs and acrids in agriculture, and regulate of fungal affliction in agriculture.
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Extra info for Synthesis and Chemistry of Agrochemicals VI
Preparation ofImidazo[1,5,a]pyridine-l,3-diones, imidazo[5, Ι ο][1,4]oxazine-l,3-diones, andimidazo[5,Uc][l,4]thiazine-l,3-diones. C0 ;-Pr 1 r 2 28 n=l, 75 % 29 n=2, 71 % Ο γ Ν ^ Ο y* F A^ o c l s 30 n=l,52% 31 n=2,31% Figure 4. Preparation of [l,3,4]Thiadiazolo[3,4-a]pyridazines and [1,3,4]thiadiazolo[3,4-a]l, 2-diazepines. ; ACS Symposium Series; American Chemical Society: Washington, DC, 2001. 36 ^C0 /-Pr 2 Ο γ Ν γ Ο 19 H3CO c NH NH HC1 c NH. ch004 2 CSC1 f > H ° γ 2 Ν 2 γ ° 2 K C0 /DCE ° γ Ν C0 /-Pr 3 cH >xcr - γ ° 69% F' ° F ^ CI 34 K C0 32 Cl CO(COCl) DCE 52% 2 CCty-Pr 3 3 Ο γ Ν γ Ο N y ° M F' r F v C0 /-Pr ^, - ,C l N - C H 3 0 36 2 Cl 35 F/gwre 5.
3-methylphenyl, the imidate was prepared from the nitrile using methanol saturated with HC1 gas (4). g. pyridyl, the imidate could be prepared by the action of catalytic sodium methoxide on the nitrile (5). ; ACS Symposium Series; American Chemical Society: Washington, DC, 2001. 2 53 6 R C 0 C 1 was employed for the synthesis of many non-commercially available βketoesters R C O C H R C 0 E t (<5). 6 5 2 R W - V. a R r 5 b„ Ν 6 N-V . . ch006 6 R H 2 / N-V -, , R5 2 R ^N"%R % ^ 0 R 6 3 3 5 6 7 8 a) R C O C H R C 0 E t , NaOAc, xylenes, reflux, Dean Stark trap, b) R X , K C 0 , acetone, reflux.
J. Chem. Soc. 1955, 211-217. Bramley, P. M. in Target Sites for Herbicide Action, Kirkwood, R. C. ; Plenum Press: New York 1991, pp 114-115. ; Borrod, G. S. Patent 4,383,849, 1983. Dahle, N. A . S. Patent 4,104,053, 1978. ; ACS Symposium Series; American Chemical Society: Washington, DC, 2001. Chapter 6 Synthesis of Herbicidal 2-Aryl-4-(3H)-pyrimidinones 1 1 1 Colin M. Tice , Lois M. Bryman , Renee C. Roemmele , Edward C. ch006 3 1 Rohm and Haas Company, 727 Norristown Road, Spring House, PA 19477-0904 Department of Chemistry, Princeton University, Princeton, NJ 08544-1009 Institute of Organic Chemistry, Polish Academy of Sciences, 01-224 Warsaw, Poland 2 3 5,6-Dimethyl-2-phenyl-3-propargyl-4(3H)-pyrimidinone 1 possesses lead level herbicidal activity.