88199-66-0Relevant academic research and scientific papers
ON THE LITHIUM DIMETHYLCUPRATE INDUCED CONVERSION OF PROPARGYLIC ESTERS INTO ALLENES USING A STEROIDAL C/D FRAGMENT DERIVED FROM VITAMIN D3 AS A STEREOCHEMICAL PROBE.
Haces, Alberto,Kruchten, Eugene M. G. A. van,Okamura, William H.
, p. 2707 - 2710 (1982)
The reactions of (CH3)2CuLi with various C-8 epimeric propargylic esters derived from Grundmann's ketone, a C/D steroid fragment originating from vitamin D3, lead to the corresponding allenes, the stereochemistry of which indicate a preferred a
CONFIGURATIONAL STABILITY OF ALLENIC ANIONS, uSE OF A VITAMIN D DERIVED CD FRAGMENT AS A STEREOCHEMICAL PROBE AND THE STEREOSELECTIVE SYNTHESIS OF PRECURSORS
Kruchten, Eugene M. G. A. van,Haces, Alberto,Okamura, William H.
, p. 3939 - 3942 (2007/10/02)
Metallation (n-BuLi, t-BuOK, THF) followed by quenching (DCl, D2O) of (S)-allenes 4a-c occurs primarily with retention of configuration, whereas that of (R)-allenes 4d-e occurs mainly with inversion; the allenes 4 were prepared from related propargyl alco
