- Convenient synthesis of 2-(methylsulfonyl)pyrimidine derivatives
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An efficient and convenient approach for the preparation of functionalized 2-(methylsulfonyl)pyrimidine derivatives has been developed through cyclic condensation of malonate derivatives with S-methylisothiouronium sulfate followed by derivation and oxidation in water–acetone mixture using oxone as the oxidant. This synthetic strategy provides an efficient and environmentally friendly approach for easy access to 2-(methylsulfonyl)pyrimidine derivatives with considerable yields.
- Huang, Tong-Hui,Zhou, Shan-Shan,Wu, Xin,An, Lin,Yin, Xiao-Xing
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p. 714 - 720
(2018/02/16)
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- 2-benzyloxy-4-phenoxypyrimidine derivative, processes for producing the derivative and herbicidal composition containing the derivative
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A 2-benzyloxy-4-phenoxypyrimidine derivative represented by the formula (I): STR1 wherein R1 represents hydrogen, a halogen, C1 -C4 alkyl, C1 -C4 haloalkyl, C1 -C4 alkoxy, C1 -C4 haloalkoxy, C3 -C5 alkenyloxy, C1 -C4 alkylthio, C1 -C4 haloalkylthio, cyano, or phenyl; each X, which may be identical or different if n is greater than 1, represents a halogen, C1 -C4 alkyl, C1 -C4 haloalkyl, or C1 -C4 alkoxy; each Y, which may be identical or different if m is greater than 1, represents a halogen, C1 -C4 alkyl, C1 -C4 haloalkyl, C1 -C4 alkoxy, C1 -C4 haloalkoxy, C1 -C4 alkylthio, or C1 -C4 haloalkylthio; and n and m each independently represent an integer of 0 to 5, which is useful as a herbicide.
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- Herbicidal composition containing 2-benzyloxypyrimidine derivatives, processes for producing the derivatives and 2-benzyloxypyrimidine derivatives
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A herbicidal composition comprising a herbicidally effective amount of a 2-benzyloxypyrimidine derivative represented by the formula (I): STR1 wherein R1 and R2 are each independently H, a halogen, hydroxyl, C1 -C4 alkyl, C1 -C4 haloalkyl, C3 -C5 alkenyl, C3 -C5 alkynyl, C1 -C4 alkoxy, C1 -C4 haloalkoxy, C3 -C5 alkenyloxy, C3 -C5 alkynyloxy, C1 -C4 alkylthio, or phenyl; n is an integer of 0 to 5; and each X which may be identical or different if n is greater than 1, is a halogen, C1 -C4 alkyl, C1 -C4 haloalkyl, C1 -C4 alkoxy, C1 -C4 alkylthio, C7 -C9 aralkyloxy, phenyl, hydroxymethyl, hydroxycarbonyl, C1 -C4 alkoxycarbonyl, or nitro, and an adjuvant.
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