Intramolecular Diels−Alder Reactions of Decatrienoates: Remote Stereocontrol and Conformational Activation<sup>1</sup>
作者:Pilho Kim、Michael H. Nantz、Mark J. Kurth、Marilyn M. Olmstead
DOI:10.1021/ol005886q
日期:2000.6.1
The intramolecular Diels-Alder (IMDA) reactions of C(8)-substituted decatrienoates have been studied. The stereospecific formation of 11 via an endo-boat-9 transition state attests to the powerful directing influence of a C(8) substituent in the IMDA of decatrienoate. In addition, the contrasting observations that stereospecific 9 --> 11 occurs at room temperature while the nor-tert-butyl substrate