156570-79-5Relevant academic research and scientific papers
Studies toward the total synthesis of angelmicin B (hibarimicin B): Synthesis of a model CD-D′ arylnaphthoquinone
Narayan, Sridhar,Roush, William R.
, p. 3789 - 3792 (2007/10/03)
(Chemical Equation Presented) A synthesis of arylnaphthoquinone 22 corresponding to the CD-D′ unit of angelmicin B via the Suzuki coupling of the D′ arylboronic acid 15 with the CD bromonaphthoquinone 21 is described. The mild conditions for the Suzuki cross-coupling leading to 22 may prove to be useful for the eventual late-stage coupling of the two highly functionalized halves of angelmicin B.
Photoreactivity of some 2-alkoxy/phenoxy-3,5,6-tri-chloro/bromo-1,4-benzoquinones
Kallmayer,Fritzen
, p. 235 - 238 (2007/10/02)
We report the reaction between 2,3,5,6-tetrachloro/bromo-1,4-benzoquinones (5A/B) with deprotonated alkoholes/phenoles 7a-e to give yellow 2-alkoxy/phenoxy-3,5,6-trichloro/bromo-1,4-benzoquinones 9A/Ba-e. These reaction products are probably photodegraded yielding the corresponding 2-hydroxy-3,5,6-trichloro/bromo-1,4-benzoquinones 15A/B. The quinones 9A/B are not O-conjugated dehydrated, and the quinones 9Ba-e are not C-3-debrominated. These reactions are observed by photodegradation from 2-dialkylamino-3,5,6-trichloro/bromo-1,4-benzoquinones.
