Stereochemical Control of Reductions. 9. Haptophilicity Studies with 1,1-Disubstituted 2-Methyleneacenaphthenes
作者:Hugh W. Thompson、Shaker Y. Rashid
DOI:10.1021/jo010633b
日期:2002.5.1
the groups studied was R = CH(2)NH(2), CH(2)NMe(2), CH(2)OH, CHNOH, CH(2)OMe, CHO, CONH(2), CH(2)NHCOMe, COOK, COMe, CN, CONHOH, COOH, COOMe, COONa, COOLi. Because knowledge of group haptophilicities offers potential for stereochemical control in such reductions, comparisons are provided with haptophilic orders found in other molecular systems. It is shown that absolute haptophilicities can be manipulated
合成了一系列的1-甲基-2-亚甲基ena烯,在1-位带有一个额外的可变取代基(R)。这些化合物已在5%Pd / C催化剂上于标准条件下在乙醇中氢化,以评估R的亲亲水性,即其通过与催化剂表面配位而强制从分子自身表面添加氢的能力。对于所研究的组,以亲和力降低的方式评估了亲液性的顺序为R = CH(2)NH(2),CH(2)NMe(2),CH(2)OH,CHNOH,CH(2) OMe,CHO,CONH(2),CH(2)NHCOMe,COOK,COMe,CN,CONHOH,COOH,COOMe,COONa,COOLi。由于具有组亲和性的知识为此类减少提供了立体化学控制的潜力,因此可以与在其他分子系统中发现的亲和性顺序进行比较。