125318-10-7Relevant articles and documents
Preparation of (2E,4E)-2-(2-benzyloxyethyl)-5-(3-methoxy-4-chlorophenyl) penta-2,4-dienal as a key intermediate in the synthesis of strobilurin B
Popovsky,Stepanov,Grigorieva
, p. 1616 - 1621 (2012)
(2E,4E)-2-(2-Benzyloxyethyl)-5-(4-chloro-3-methoxyphenyl)penta-2,4-dienal was obtained by the condensation of 4-benzyloxybutanal N-tert-butylimine with 4-chloro-3-methoxycinnamic aldehyde with ≥98% configurational purity and 40% yield. When 4-benzyloxy-2-triethylsilylbutanal imine was used, a 7: 3 mixture of the target (2E,4E)-dienal with its (2Z,4E)-isomer was obtained in 60% yield; the latter quantitatively isomerized to the thermodynamically preferable target (2E,4E)-dienal.
SYNTHESE STEREOSELECTIVE D'UNE COMPOSANTE DE LA PHEROMONE SEXUELLE DE "L'ECAILLE ROUGE DE CALIFORNIE" : L'ACETATE D'ISOPROPENYL-6 METHYL-3 DECADIENE-3,9 YLE (3Z,6R)
Baudouy, Rene,Prince, Philippe
, p. 2067 - 2074 (2007/10/02)
The stereospecific elaboration of the trisubstituted double bond of acetate 1, is realized by condensation of an α-silylaldimine with aldehide 5 prepared by regioselective ozonolysis of (+)-limonene.