128946-91-8Relevant academic research and scientific papers
CUPRATE ADDITIONS TO 5-METHOXYCYCLOPENTENONES: A NOVEL STEREOELECTRONIC EFFECT
Smith III, Amos B.,Dunlap, Norma K.,Sulikowski, Gary A.
, p. 439 - 442 (1988)
Cuprate additions to 5-methoxy-2-cyclopentenone have been found to proceed with moderate to extremely high diastereofacial selectivity, depending upon the specific cuprate and reaction protocol employed.Comparisons with related 5-substitued cyclopentenones suggest that the observed selectivity is not simply steric in nature, but instead reflects a novel stereoelectronic effect.
Chemo- and Stereo-selective Preparation of Cyclopentanone Derivatives from Cyclohexenones using Trimethylstannyl-lithium as a Key Reagent
Sato, Tadashi,Watanabe, Toshiyuki,Hayata, Toshihiro,Tsukui, Tohru
, p. 153 - 154 (2007/10/02)
Upon treatment with trimethylsilyl trifluoromethane-sulphonate, β-stannylcyclohexanones afforded cyclopentanones chemo- and stereo-selectively.
DETERMINATION OF THE ABSOLUTE STRUCTURES OF CIS-TRIKENTRIN A AND TRANS-TRIKENTRIN A BY SYNTHESIS OF THEIR ENANTIOMERS
Muratake, Hideaki,Natsume, Mitsutaka
, p. 5771 - 5772 (2007/10/02)
(-)-cis-Trikentrin A (20) and (-)-trans-trikentrin A (21) were synthesized from (R)-3-methyladipic acid by way of pyrrole derivatives 14, 15, and 17, establishing the absolute structure of the natural cis- and trans-trikentrins A to be 1 and 2.
