77681-08-4Relevant articles and documents
STUDIES IN POLYETHER SYNTHESIS: SPIROACETAL FORMATION BY DIRECTED BISEPOXYDE CYCLISATION
Paterson, Ian,Boddy, Ian
, p. 5301 - 5304 (1988)
The synthesis of tricyclic polyether fragments 15 and 20, which incorporate a spiroacetal subunit, using directed bisepoxyde cyclisation is described.
Synthesis of optically active 2s-, and 7s-methyl-1.6-dioxa-spiro[4.5] decane, the pheromone components of Paravespula vulgaris (L.), from S-ethyl lactate.
Hintzer,Weber,Schurig
, p. 55 - 58 (2007/10/02)
(-)-2S, 5RS-1 and (-]-7S, 5S-2 are obtained from S-ethyl lactate 4 and their absolute configuration is thus directly correlated. Accurate enantiomeric compositions of intermediates and products were measured by complexation gas chromatography on nickel-, and manganese-bis-3-heptafluorobutyryl-1R-camphorate, 3. It could be conclusively established that the syntheses proceed with a high degree of preservation of configuration.