20416-09-5Relevant articles and documents
A 2-benzyl-furan-4-methanol synthesis method
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, (2017/02/24)
The invention discloses a method for synthesizing 2-benzyl furan-4-methanol. The method comprises the following steps: (1) reacting a hydroxyl protecting agent with 4-hydroxymethyl furan-2-formaldehyde, so as to obtain a compound of which the structure is shown in a formula a; (2) mixing a phenyl carbon anion reagent with a compound of which the structure is shown in the formula a, and reacting to obtain a compound of which the structure is shown in a formula b; (3) removing a hydroxyl protection groups from the compound of which the structure is shown in the formula b, and then carrying out hydrogenolysis, thereby obtaining the 2-benzyl furan-4-methanol.
Isoxazolines as intermediates to furans
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, (2008/06/13)
Isoxazolines of the general formula II STR1 in which R1, R2, R3 and R4 are each unsubstituted or halogen-, haloalkyl-, alkoxy-, haloalkoxy-, nitro-, cyano-, dialkylphosphonyl- or alkoxycarbonyl-substituted alkyl, aryl, aralkyl, alkoxycarbonyl or dialkoxyphosphonyl, R2 and R4 are each also hydrogen and R3 is also hydroxyalkyl which is unblocked or blocked by a detachable protective group or is haloalkyl, X is hydrogen or a detachable protective group, are used to prepare furans.
Pentafluorobenzyl esters
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, (2008/06/13)
The (+), (-) and (±) forms of the compounds of the general formula (I) STR1 characterized in that R1 is a halo group; or a lower alkyl, lower alkoxy or lower alkylthio group, each of which may be substituted with one or more halo groups; R2 is hydrogen or a methyl group; or R1 and R2 together form a methylenedioxy, or a difluoromethylenedioxy group or, with the carbon atoms to which they are attached, an aromatic or heteroaromatic ring; and A is one of the groups X or Y STR2 wherein X1 and X2 are the same or different and each is hydrogen or a fluoro, chloro, bromo or methyl group, with the proviso that if X1 is a fluoro group, then X2 should not be a bromo group; and X3 and X4 are the same or different and each is hydrogen or a fluoro group; and Y1, Y2, Y3, Y4, Y5 and Y6 are the same or different groups and each is hydrogen or a fluoro, bromo, chloro, or methyl group. The compounds (I) are insecticidally active.