23731-55-7Relevant academic research and scientific papers
Synthesis and biological evaluation of 10-benzyloxy-Narciclasine
Ticli, Vincenzo,Zhao, Zhenze,Du, Liqin,Kornienko, Alexander,Hudlicky, Tomas
, (2021/11/08)
A chemoenzymatic convergent synthesis of 10-benzyloxy narciclasine from bromobenzene was accomplished in 16 steps. The key transformations included toluene dioxygenase-mediated hydroxylation, nitroso Diels-Alder reaction and intramolecular Heck cyclization. The unnatural derivative of narciclasine was subjected to biological evaluation and its activity was compared to other C-10 and C-7 compounds prepared previously.
THE SYNTHESIS OF 6-METHOXY-7,8-METHYLENEDIOXYISOQUINOLINE DERIVATIVES
Simig, Gy.,Schlosser, M.
, p. 217 - 228 (2007/10/02)
Several new 6-methoxy-7,8-methylenedioxyisoquinolines were synthesized starting from 4-methoxy-2,3-methylenedioxybenzaldehyde.
PREPARATION OF 2-METHOXY-3,4-METHYLENEDIOXYBENZALDEHYDE (CROWEACIN ALDEHYDE) FROM PYROGALLOL
Shirasaka, Tadashi,Takuma, Yuki,Imaki, Naoshi
, p. 1213 - 1221 (2007/10/02)
2-Methoxy-3,4-methylenedioxybenzaldehyde (croweacin aldehyde) of high purity was prepared in 55percent overall yield from pyrogallol.
The Chemistry of 2H-3,1-Benzoxazine-2,4(1H)-dione (Isatoic Anhydride). 21. A Mild Process For The Preparation of 10-Alkyl-9-acridanones And It's Application To The Synthesis of Acridone Alkaloids
Coppola, Gary M.,Schuster, Herbert F.
, p. 957 - 964 (2007/10/02)
10-Substituted-9-acridanones are readily prepared by the reaction of the corresponding isatoic anhydride with the lithium enolate of 2-cyclohexen-1-one.The initially formed product, the 1,2-dihydroacridone need not be purified but can be aromatized directly with DDQ to the desired acridone.This methodology is applicable to the synthesis of acridone natural products.Two alkaloids, 1,2,3-trimethoxy-10-methylacridone (9) and evoxanthine (10), were prepared from 4,5,6-trimethoxy-N-methylisatoic anhydride and 6-methoxy-4,5-methylenedioxy-N-methylisatoic anhydride respectively.In these trioxygenated systems, palladium-on-charcoal must be used to aromatize the penultimate intermediate.
SEARCH FOR METHODS OF SYNTHESIZING 1,9,10- TRIMETHOXY-2,3-METHYLENEDIOXYAPORPHINE.
Vinogradova, V. I.,Yunusov, M. S.
, p. 777 - 782 (2007/10/02)
Several possible methods of obtaining 4-methoxy-2,3-methylenedioxybenzaldehyde have been considered.A method ensuring the synthesis of this aldehyde with a yield of 35-40percent has been developed which consists in the bromination of isovanillin followed by the replacement of the halogen by a hydroxy group and methylation.A number of substituted benzylidene- and benzyltetrahydroisoquinolines have been synthesized.It has been shown that the irradiation of these substances leads to N-dealkylation accompanied by oxidative processes.
Synthesis of the Yeast Antioxidant Benzofuran and Analogues
McKittrick, Brian A.,Stevenson, Robert
, p. 709 - 712 (2007/10/02)
2-(6-Hydroxy-2-methoxy-3,4-methylenedioxyphenyl)benzofuran, the active antioxidant which occurs in yeasts, and related 2-arylbenzofurans have been synthesized by a convergent route.The key step involves benzofuran formation by an intramolecular Wittig reaction.
