33104-16-4Relevant academic research and scientific papers
Formation of Dichloromethyl Phenyl Ethers as Major Products in Photo-Reimer-Tiemann Reaction without Base
Jimenez, M. Consuelo,Miranda, Miguel A.,Tormos, Rosa
, p. 5825 - 5830 (2007/10/02)
Photolysis of phenols 1a-d in chloroform or carbon tetrachloride afforded the corresponding di- or trichloromethyl phenyl ethers (2a-d or 6a-d, respectively).In chloroform, hydroxybenzaldehydes 4a-d or 5 and phenyl formates 3a-d were obtained as minor photoproducts.In carbon tetrachloride, traces of salicyloyl chloride (7), phenyl salicylate (8) and phenyl p-hydroxybenzoate (9) were detected starting from the parent phenol (1a).The obtained results agree with the involvement of an electron transfer mechanism.
Bisphosphonic acids and esters
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, (2008/06/13)
The present invention relates to hitherto unknown compounds of the formula I STR1 in which R1 is a straight or branched, saturated or unsaturated aliphatic or alicyclic C1 -C10 hydrocarbon radical, an aryl or an aryl-C1 -C4 -alkyl radical, R1 if desired being unsubstituted or substituted with straight or branched C1 -C4 -alkyl, amino, C1 -C4 -alkamino, di-(C1 -C4 -alkyl)-amino, carboxy, C1 -C4 -alkoxycarbonyl, hydroxy, C1 -C4 -alkoxy, phenoxy, mercapto, C1 -C4 -alkylthio, phenylthio, halogen, trifluoromethyl; R2 stands for hydrogen, C1 -C8 -alkyl, aryl-C1 -C4 -alkyl or halogen; X is O or S, and n is an integer from 0 to 2; with the proviso that R2 cannot be hydrogen or methyl if n=O and R1 is methyl. The compounds of the invention are valuable in the human and veterinary practice.
