20976-92-5Relevant academic research and scientific papers
The biosynthesis of 34,24 dinor 5 cholene 3β,20 diol and 23,24 dinor 5 cholene 3β,21 diol
Tait
, p. 239 - 245 (1973)
An alternative pathway for steroidogenesis, via a sesterterpene, was proposed. This communication presents evidence that 2 of the proposed compounds with the 23,24 dinorcholane carbocyclic system, 23,24 dinor 5 cholene 3β,20 diol and 23,24 dinor 5 cholene 3β,21 diol, can be biosynthesized from sodium [3H] acetate in a bovine adrenal preparation.
An Intramolecular Iodine-Catalyzed C(sp3)?H Oxidation as a Versatile Tool for the Synthesis of Tetrahydrofurans
Br?se, Stefan,Koch, Vanessa
supporting information, p. 3478 - 3483 (2021/07/22)
The formation of ubiquitous occurring tetrahydrofuran patterns has been extensively investigated in the 1960s as it was one of the first examples of a non-directed remote C?H activation. These approaches suffer from the use of toxic transition metals in overstoichiometric amounts. An attractive metal-free solution for transforming carbon-hydrogen bonds into carbon-oxygen bonds lies in applying economically and ecologically favorable iodine reagents. The presented method involves an intertwined catalytic cycle of a radical chain reaction and an iodine(I/III) redox couple by selectively activating a remote C(sp3)?H bond under visible-light irradiation. The reaction proceeds under mild reaction conditions, is operationally simple and tolerates many functional groups giving fast and easy access to different substituted tetrahydrofurans.
