e.g. Filippa Pettersson or Cancer Res. 75(6) , 1102-12, (2015) or 10.1002/anie.201600521
Chemistry Letters
Stereospecific Photochemical Cyclization of Azidoquinone with E, E-and Z, Z-Dienes. Application to the Synthesis of an Important Precursor toward Mitomycins
Photochemical reaction of 5-azido-2-methoxy-3-methyl-1, 4-benzo quinone with cis, cis-2, 4- hexadien-1, 6-diol derivatives stereoselectively affords the corresponding 2, 3- dihydroindolequinone, which possesses trans configuration at 2, 3-position and vinylic double bond preserves the original stereochemistry of the diene. It is efficiently converted to a key precursor in mitomycin synthesis.