Seebach, Dieter; Beck, Albert K.; Lehr, Friedrich, Angewandte Chemie, 1981, vol. 93, # 4, p. 422 - 424
作者:Seebach, Dieter、Beck, Albert K.、Lehr, Friedrich、Weller, Thomas、Colvin, Ernest W.
DOI:——
日期:——
SEEBACH D.; BECK A. K.; LEHR F.; WELLER T.; COLVIN E. W., ANGEW. CHEM., 1981, 93, NO 4, 422-424
作者:SEEBACH D.、 BECK A. K.、 LEHR F.、 WELLER T.、 COLVIN E. W.
DOI:——
日期:——
Diastereoselective Synthesis of Nitroaldol Derivatives
作者:Dieter Seebach、Albert K. Beck、Triptikumar Mukhopadhyay、Elizabeth Thomas
DOI:10.1002/hlca.19820650402
日期:1982.6.16
Three methods are described by which diastereomerically enriched nitroaldols and their O-silylated derivatives can be prepared. threo-Nitroaldols prevail up to 10:1 over the erythro-isomers if doubly deprotonated nitroaldols 28 are quenched with acetic acid (THF/HMPT or DMPU, − 100°) (see Scheme 5 and Table 2). O-Trimethyl- or O-(t-butyl)dimethylsilylated (TBDMSi) erythro-nitroaldols can be obtained