599192-45-7Relevant academic research and scientific papers
New S,O-acetals from (1R)-(-)-myrtenal as chiral auxiliaries in nucleophilic additions
Chacón-García, Luis,Lagunas-Rivera, Selene,Pérez-Estrada, Salvador,Vargas-Díaz, M. Elena,Joseph-Nathan, Pedro,Tamariz, Joaquín,Zepeda, L. Gerardo
, p. 2141 - 2145 (2007/10/03)
Treatment of hydroxythiol 4 with α,α-diethoxyacetophenone at room temperature yielded a mixture of epimeric S,O-acetals 6 and 7 (1:4, 92% yield), which were efficiently separated by flash chromatography. The OTBS derivatives 8 and 9 were treated with several Grignard reagents to afford carbinols 10 and 13 respectively (85-99% yield, >95% dr). After successive hydrolysis and reduction of 10 and 13 it is possible to obtain either enantiomer of diols 16 in high optical purity (>95% er).
New 1,3-oxathianes derived from Myrtenal: Synthesis and reactivity
Solladie-Cavallo, Arlette,Balaz, Milan,Salisova, Marta,Welter, Richard
, p. 6619 - 6626 (2007/10/03)
2-Methyl- and 2-phenyl-substituted oxathianes derived from Myrtenal have been synthesized in satisfying yields. Lithiation of 2-methyl-substituted oxathiane could not be done, but lithiation of 2-phenyl-substituted and non-substituted oxathianes could be
Enantioselective synthesis of 1-alkyl-substituted 1-phenyl-1,2-ethanediols using a myrtenal-derived chiral auxiliary
Vargas-Diaz, Maria Elena,Chacon-Garcia, Luis,Velazquez, Pedro,Tamariz, Joaquin,Joseph-Nathan, Pedro,Zepeda, L. Gerardo
, p. 3225 - 3232 (2007/10/03)
The enantioselective synthesis of several 1-phenyl-1,2-ethanodiol derivatives using 2-benzoyl-1,3-oxathiane 1 as a chiral auxiliary is described. Nucleophilic additions of Grignard reagents, methyl lithium and LS-Selectride on benzoyloxathiane 1 proceeded in >95% diastereomeric ratio (dr) affording the corresponding tertiary carbinols, which were successively hydrolyzed and reduced to give the title derivatives in >95% enantiomeric excess (ee).
