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Journals and Conferences
Pyrromethenone 7, the C,D-ring segment of phytochrome (Pr, 4), has been prepared in an efficient fashion employing three new strategies. Each of these has potential advantages for the synthesis of… (More)
Porphobilinogen lactam methyl ester (3a) has been prepared in seven steps, and approximately 20-30% overall yield, beginning with furfurylamine (4a).(24) Hydrolysis of 3a following the literature… (More)
In this work we investigate the localization and photophysical properties of twelve synthetically derived chlorins in artificial membranes, with the goal of designing more effective photosensitizers… (More)
Alkyne oxazoles of general structure I are transformed directly to furo[2,3-b]phenol derivatives II by a sequence involving intramolecular Diels-Alder/retro-Diels-Alder reaction followed by… (More)
[reaction: see text] C,D-ring symmetric chlorins 8 were prepared in 47-85% yield, on scales up to several hundred milligrams, by condensation of appropriately substituted bis-formyldihydrodipyrrins 6… (More)
In previous studies, we demonstrated that elongation of side chains of several sensitizers endowed them with higher affinity for artificial and natural membranes and caused their deeper localization… (More)
A new synthesis of chlorins has been developed, based upon the acid-catalyzed condensation of dialdehydes AB with dipyrromethanes CD.
[formula: see text] Hexahydrodipyrrins 15 (X=H2) have been prepared by two routes: Pd(0)-initiated coupling/cyclization of triflates 11 and alkyne amines 12 and reduction of semicorrins 26 (X=O).
Recently, we have been investigating the synthetic utility of alkyne acids of general structure 1, which are useful precursors to a variety of natural product skeletons (Scheme 1).1 The versatility… (More)