ISSN:
0018-019X
Schlagwort(e):
Chemistry
;
Organic Chemistry
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
Notizen:
Using the enol benzoate or enol ether of methylmalonaldehyde and 1, l-diethoxy-2-methylpent-2-en-4-yne as intermediates for polyene syntheses a number of polyenes have been synthesized. From β-C19-aldehyde, β-apo-12′-carotenal(C25) has been prepared via the 15,15′-dehydro compound and found to be identical with one of the oxidation products of β-carotene previously obtained by KARRER. The preparation of key intermediates for the lycopene and canthaxanthin synthesis has been improved.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/hlca.19590420327
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