Recently I am researching about TRANSANNULAR DIELS-ALDER; ENANTIOSELECTIVE TOTAL-SYNTHESIS; ASYMMETRIC TOTAL-SYNTHESIS; SOFT CORAL; FURANOPHANE APPROACH; CHATANCIN; STRATEGY; KETONES; DITERPENOIDS; ANNULATION, Saw an article supported by the Zhejiang Natural Science Fund for Distinguished Young Scholars [LR16B020001]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [21871230, 21622205, 21702182, 21873081]. Published in WILEY-V C H VERLAG GMBH in WEINHEIM ,Authors: He, C; Xuan, J; Rao, PR; Xie, PP; Hong, X; Lin, XF; Ding, HF. The CAS is 93-97-0. Through research, I have a further understanding and discovery of Benzoic anhydride. Quality Control of Benzoic anhydride
A concise and divergent approach for the total syntheses of four cembrane diterpenoids, namely (+)-sarcophytin, (+)-chatancin, (-)-3-oxochatancin, and (-)-pavidolideB, has been developed, and it also led to the structural revision of (-)-isosarcophytin. The key steps of the strategy feature a double Mukaiyama Michael addition/elimination, a Helquist annulation, two substrate-controlled facial-selective hydrations, and a pinacol rearrangement. The described syntheses not only achieved these natural products in an efficient manner, but also provided insight into the biosynthetic relationship between the two different skeletons.
Quality Control of Benzoic anhydride. About Benzoic anhydride, If you have any questions, you can contact He, C; Xuan, J; Rao, PR; Xie, PP; Hong, X; Lin, XF; Ding, HF or concate me.
Reference:
Isothiazole – Wikipedia,
,Isothiazole – ScienceDirect.com