Bk. Chowdhury et C. Saha, PHOTOFORMYLATION OF CARBAZOLES - SYNTHESIS OF DEOXYCARBAZOMYCINAL, DEOXYCARBAZOMYCINE-B AND 6-FORMYL-3-METHOXYCARBAZOLE, A NATURAL PRODUCT, Indian journal of chemistry. Sect. B: organic chemistry, including medical chemistry, 33(9), 1994, pp. 892-893
4-Deoxycarbazomycin-B (3) has been obtained via 4-deoxycarbazomycinal
(4) through photochemical formylation of 3-methoxy-2-methylcarbazole (
9). 6-Formyl-3-methoxycarbazole (8), a natural product, has also been
prepared by photoformylation of 3-methoxycarbazole (5).