42973-56-8Relevant academic research and scientific papers
Mechanism of simmondsin decomposition during sodium hydroxide treatment
Van Boven,Laga,Leonard,Busson,Holser,Decuypere,Flo,Lievens,Cokelaere
, p. 1260 - 1264 (2003)
Jojoba seed meal shows appetite-suppressing activity due to the presence of simmondsin. This pharmacological activity disappears with treatment of the meal with sodium hydroxide. To elucidate this mechanism of inactivation, the reaction of simmondsin in 1 N NaOH at 20 °C was monitored as a function of time. The end products of the reaction as well as intermediates were isolated and identified. The half-life of simmondsin was ~60 min with D-glucose and 2-hydroxy-3-methoxyphenylacetonitrile as reaction end products. The reaction mechanism could be elucidated by the isolation of isosimmondsin and a simmondsin lactone derivative. Those compounds were isolated and purified by a combination of column chromatography and HPLC and identified mainly by HRMS and NMR spectroscopy.
One-pot transition-metal-free synthesis of dibenzo[b,f]oxepins from 2-halobenzaldehydes
Choi, Young Lok,Lim, Hye Sun,Lim, Hwan Jung,Heo, Jung-Nyoung
, p. 5102 - 5105,4 (2012/12/12)
A one-pot transition-metal-free, base-mediated synthesis of dibenzo[b,f]oxepins was developed. The reaction of 2-halobenzaldehydes with (2-hydroxyphenyl)acetonitriles proceeds via a sequential aldol condensation and intramolecular ether formation reaction in the presence of Cs2CO 3 and molecular sieves in toluene.
