Isocoumarins, 3,4-dihydro- from

Isoquinol-4(l H)-one, 2,3-dihydro-synthesis, 2, 73 Isoquinolinones from isocoumarins, 3, 691 magnetic circular dichroism, 2, 129 synthesis,... 

Based on 13C-NMR analyses, it has been assumed [62] that 6-methoxymellein, a polyketide compound, is synthesized by head-to-tail condensation of one acetyl-CoA and four malonyl-CoA to form 3,4-dehydro-6-hydroxymellein as an intermediate. This isocoumarin derivative is then reduced to its dihydro-form, 6-hydroxymellein, which then accepts a methyl-unit via Omethyltransferase. We have shown [63] that cell extracts prepared from elicitor-treated carrot root disks catalyzes... 

Both isocoumarins and their 3,4-dihydro derivatives have been prepared from 2-(2-oxopropyl)benzaldehydes using the Ir aminoalkoxide catalyst 28. The former arise... 

The use of A/ -heterocychc carbenes (NHC) as catalysts in the preparation of3,4-dihydro-2H-pyran-2-ones (14EJ05631),the copper-catalyzed synthesis of 3-substimted isocoumarins from o-halobenzoic acids and 1,3-diketones (14JOC8507) and the synthesis and reactivity of pyridine-flised 3-substituted 2-amino-4-arylchromenes (14H(89)1557) have been reviewed. 

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