Vinyl Cyclobutane Rearrangements
Chemexpress A recent publication by the group of Phil S. Baran from the Scripps Research Institute (Angew. Formula of 3-Vinylthiophene Chem. Int. Ed. PMID:24268253 2004, 43, 2674. DOI: 10.1002/anie.200453937) reports the…
The Betzer and Ardisson Synthesis of (+)-Discodermolide
(+)-Discodermolide (3), a potent anticancer agent that works synergistically with taxol, may yet prove to be clinically effective. For the synthetic material to be affordable, a highly convergent synthesis is…
The Burke Synthesis of (+)-Didemniserinolipid B
The sulfate (+)-didemniserinolipid B (3), isolated from the tunicateDidemnum sp, has an intriguing spiroether core. 1-Bromo-2-fluorobenzene Chemscene A key step in the synthesis of 3 reported (Org. PMID:25046520 Lett. 1031967-52-8…
The Toste Synthesis of (+)-Fawcettimine
The tetracyclic Lycopodium alkaloid fawcettimine (3) and its derivatives are of interest as inhibitors of acetylcholine esterase. F. Dean Toste of the University of California, Berkeley recently reported (Angew. Chem.…
The Takayama Synthesis of (-)-Cernuine
(-)-Cernuine (3) falls in the subset of the Lycopodium alkaloids that feature a bicyclic aminal core. There had not been a total synthesis of this class of alkaloids until the…
C-H Functionalization: The White Reagent
The direct functionalization of a C-H bond is a powerful transformation for organic synthesis, allowing the rapid elaboration of desired complexity from inexpensive starting materials. Formula of (3-Hydroxy-5-methylphenyl)boronic acid Even…
Enantioselective Construction of Arrays of Stereogenic Centers
A classic strategy for controlling relative stereocontrol is to imbed the stereogenic centers in a ring. PMID:23415682 Hisashi Yamamoto of the University of Chicago has developed (J. Am. Chem. Soc.…
S provided in Fig. 1. A certain pattern of growth and lipid
S given in Fig. 1. A particular pattern of development and lipid accumulation was observed in C. cohnii for the duration of the whole growth period. Rapid cellSafdar et al.…
Gh carbodiimide reaction. For ultraviolet (UV) isible (vis) measurements, the zwitterionic
Gh carbodiimide reaction. For ultraviolet (UV) isible (vis) measurements, the zwitterionic nanocapsules devoid of DOX encapsulation (Z-NCs) have been prepared initially then the aminated FA was introduced. The molar ratio…
Stereocontrolled Alkaloid Total Synthesis
Barry M. Trost of Stanford University has developed powerful methods for catalytic enantioselective allylation. In a recent application (J. BuyPerfluoropropionic anhydride Am. Chem. Soc. 2006, 128, 4590. DOI: 10.1021/ja060560j)he has…