72370-91-3Relevant academic research and scientific papers
2,3-Isopropylidene ribonic acid, 1,4-lactones
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, (2008/06/13)
Racemic carboxylic acids are resolved into their enantiomers using optically active enantiomers of four lactones as resolving agents. The four lactones are 2,3-isopropylidene-ribonic acid-1,4-lactone, 1,2-isopropylideneglucofuranurono-3,6-lactone, 2-hydroxy-3,3-dimethyl-1,4-butyrolactone and 3,4-isopropylidene-arabino-1,5-lactone. Novel diastereoisomeric esters of the acids with the lactones are disclosed.
Insecticidal esters
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, (2008/06/13)
Compounds of the general formula I STR1 wherein R1 is hydrogen or a methoxy, ethoxy, propoxy, butoxy, tetrafluoroethoxy, methylthio, ethylthio, propylthio, fluoro, chloro, bromo, methyl, ethyl, or nitro group, and R2 is hydrogen or a methyl group, or R1 and R2 together form a methylenedioxy group; R3 is hydrogen, or a lower alkyl group, or one of the following groups (a) to (f): (a) 3-phenoxybenzyl (b) 2-benzyl-4-furylmethyl (c) α-cyano-3-phenoxybenzyl (d) 3,4-methylenedioxybenzyl (e) α-ethynyl-3-phenoxybenzyl (f) α-cyano-3-(4'-chlorophenoxy)-benzyl and Y1, Y2, Y3, Y4, Y5 and Y6 are the same or different groups and each is hydrogen or a fluoro, bromo or chloro group, with the proviso that when R1 is hydrogen, fluoro, chloro, bromo or methyl and R2 is hydrogen, then one of Y1 to Y6 is other than hydrogen. The compounds in which R3 is one of groups (a) to (f) are insecticides.
Insecticidal esters
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, (2008/06/13)
Compounds of the general formula I STR1 wherein R1 is hydrogen or a methoxy, ethoxy, propoxy, butoxy, tetrafluoroethoxy, methylthio, ethylthio, propylthio, fluoro, chloro, bromo, methyl, ethyl, or nitro group, and R2 is hydrogen or a methyl group, or R1 and R2 together form a methylenedioxy group; R3 is hydrogen, or a lower alkyl group, or one of the following groups (a) to (f): (a) 3-phenoxybenzyl (b) 2-benzyl-4-furylmethyl (c) α-cyano-3-phenoxybenzyl (d) 3,4-methylenedioxybenzyl (e) α-ethynyl-3-phenoxybenzyl (f) α-cyano-3-(4'-chlorophenoxy)-benzyl and Y1, Y2, Y3, Y4, Y5 and Y6 are the same or different groups and each is hydrogen or a fluoro, bromo or chloro group, with the proviso that when R1 is hydrogen, fluoro, chloro, bromo or methyl and R2 is hydrogen, then one of Y1 to Y6 is other than hydrogen. The compounds in which R3 is one of groups (a) to (f) are insecticides.
