120157-59-7Relevant articles and documents
New approach for the stereoselective synthesis of (+)-epi-cytoxazone
Miranda, Izabel L.,Sartori, Suélen K.,Diaz, Marisa A.N.,Diaz-Mu?oz, Gaspar
, p. 585 - 591 (2019)
The stereoselective total synthesis of (+)-epi-cytoxazone was performed satisfactorily in 8 steps, in 17percent overall yield, via a novel route from 2,3-O-(3-pentylidene)-(R)-glyceraldehyde. The bulky group alkene-ketal allowed intramolecular control of
2,3-O-(3-pentylidene)-D-glyceraldehyde and 2,3-O-(3-pentylidene)-L-glyceraldehyde: Convenient glyceraldehyde surrogates obtained via a novel periodate-based oxidation system
Schmid,Bradley
, p. 587 - 590 (2007/10/02)
The synthesis of two novel glyceraldehyde surrogates, 2,3-O-(3-pentylidene)-D-glyceraldehyde (2) and 2,3-O-(3-pentylidene)-L-glyceraldehyde (3) is presented. Synthesis, handling and storage advantages of 2 and 3 over the conventionally employed 2,3-O-isopropylidene-D-glyceraldehyde (1) are discussed. The 3-pentanone-derived protecting group facilitates the extraction of product from aqueous oxidation solutions, while the 3-pentanone liberated on ketal deprotection can be efficiently removed at reduced pressures. The synthesis employs a buffered potassium periodate oxidation which offers significant advantages over sodium periodate in glycol cleavage reactions.