Bestmann H J,Kern F,Schafer D, et al.3,4-dihydroisocoumarins, a new class of ant trail pheromones. Angewandte Chemie International Edition . 1992Bestmann HJ, Kern F, Schafer D, Witschel MC (1992) 3,4-Dihydroisocoumarins, a new class of ant trail pheromones. Angew Chem 104: 757-758...
However, most of the literature methods described for the synthesis of 3,4-dihydron L isocoumarins are quite lengthy and tedious. We describe, herein, a simple and convenient approach for the synttesis of substituted dihydroisocoumarins. This method is of general utility.doi:10.1080/...
Several 3,4-dihydroisocoumarins and phthalides were synthesized by an effective Heck-Matsuda reaction involving an ortho carboxybenzenediazonium salt with a series of styrenes bearing electron donating and electron withdrawing groups, methylvinyl ketone, and methyl acrylate. The reaction was carried out...
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.doi:10.1002/chin.200738133Samir Kumar MandalSubhas Chandra RoyJohn Wiley & Sons, Ltd.ChemInform...
3,4-dihydro-1H-2-benzopyran-1-oneIupac Name:3,4-dihydroisochromen-1-oneCAS No.: 4702-34-5Molecular Weight:148.161Modify Date.: 2022-11-29 13:11Introduction: ChEBI: The simplest member of the class of dihydroisocoumarins that is the 3,4-dihydro derivative of isocoumarin. 3,4-dihydro...
The dianions of ortho-toluic and ±-phenyl-ortho-toluic acids were prepared with lithium diisopropylamide (LDA), condensed with certain aldehydes or ketones, and the resulting intermediates were acid-cyclized to substituted 3,4-dihydro-1H-2-benzopyran-1-ones (dihydroisocoumarins).doi:10.1080/...
Coumarins from Peucedanum praeruptorum the structure of qianhucoumarin H was elucidated as 3'(S)-angeloyloxy-4'(R)-isovaleryloxy-3',4'-dihydroseselin and the absolute configurations were ... LY Kong,Y Li,ZD Min,... - 《Phytochemistry》 被引量: 94发表: 1996年 The Effects of Stroma-...
A new, practical and efficient method for the synthesis of furo[3,4- c ]coumarins via the one-pot reaction of salicylaldehydes, β-ketoesters and isocyanides in the presence of piperidine in toluene has been reported. Reaction of 2-hydroxynaphthalene-1-carboxaldehyde, ethyl acetoacetate and cycl...
SherLeibniz-Inst.AsadLeibniz-Inst.AliLeibniz-Inst.HelmutLeibniz-Inst.ReinkeLeibniz-Inst.PeterLeibniz-Inst.LangerLeibniz-Inst.John Wiley & Sons, Ltd.ChemInformSher M,Ali A,Reinke H,et al.Synthesis of3-aryl-3,4-dihydroisocoumarins by regioselectivedomino’’’[3+3]cyclization/lactonization’’’reac...
ChemInform Abstract: SYNTHESES AND REACTIONS OF 3,4‐DIHYDROISOCOUMARINS AND ISOCHROMANSdoi:10.1002/chin.198415382M.YAMATOWileyChemischer InformationsdienstM. Yamato, Syntheses and reactions of 3, 4-dihydroisocoumarins and iso- chromans, J. Synth. Org. Chem. Jpn 41 (1983) 958e971....