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Synthesis 1999; 1999(3): 459-462
DOI: 10.1055/s-1999-3423
DOI: 10.1055/s-1999-3423
paper
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Application of the Siegrist Condensation to the Synthesis of Conjugated Enantiopure Bis(styryl)ferrocenes
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Publikationsverlauf
Publikationsdatum:
31. Dezember 1999 (online)
Enantiopure polyunsaturated bis(ferrocenyl)aldehydes 7a-c were prepared from the chiral ferrocenylimine 2b. The key reaction is a Siegrist condensation between 2b and bis-methylarenes 4a-c. Sequential introduction of two different styryl groups also gave the tris-unsaturated ferrocenecarboxaldehyde 9.
chiral ferrocenes - stilbenes - stereoselective synthesis - imines - planar chirality