Selective C(sp3)-H isothiocyanation represents a significant strategy for the synthesis of isothiocyanate derivatives. We report herein an electrochemical benzylic isothiocyanation in a highly chemo- and site-selective manner under external oxidant-free conditions. The high chemoselectivity is attributed to the facile in situ isomerization of benzylic thiocyanates to isothiocyanates. Notably, the method exhibits high functional group compatibility and is suitable for late-stage functionalization of bioactive molecules.
A compound of formula (I) where the substituents have the meanings assigned to them in claim 1 , compositions comprising a compound of formula (I) and the use of such compounds and/or compositions controlling insects, acarines, nematodes or molluscs.
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Page/Page column 63
(2008/06/13)
INDANYL-AND TETRAHYDRONAPHTYL-AMINO-THIOUREA COMPOUNDS FOR COMBATING ANIMAL PESTS
Indanyl- and Tetrahydronaphtyl-amino-thiourea compounds for combating animal pests The present invention relates to Indanyl- and Tetrahydronaphtyl-amino-thiourea compounds of formula I wherein the variables R1 to R4 are as in the des
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ALKYL AND ARYL ISOTHIOCYANATES AS MASKED PRIMARY AMINES
Primary and secondary (but not tertiary) alkyl as well as aryl isothiocyanates react rapidly with 4-methyl-1,2-benzenedithiol (1) in methanol at room temperature, releasing the corresponding amines in good yields.This mild and simple procedure for unmasking amines proceeds chemospecifically with isothiocyanates even in the presence of such normally electrophilic and reactive functionalities as carboxylate ester and N-alkylphthalimide.
Cho, Cheon-Gyu,Posner, Gary H.
p. 3599 - 3602
(2007/10/02)
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