## Abstract The syntheses of __p__‐substituted 2‐methyl‐4‐phenylbuten(1)‐carboxylic acid derivatives are described, using __Blanc__'s chloromethylation reaction, the __Friedel__‐__Crafts__ alkylation of unsaturated ketones or the __Meerwein__ arylation; the formed intermediates react in subsequent
Synthetische Juvenilhormone 2. Mitteilung. p-Substituierte 2-Methyl-3-phenyl-propen(1)-carbonsäurederivate
✍ Scribed by Albrecht Franke; Günter Mattern; Walter Traber
- Publisher
- John Wiley and Sons
- Year
- 1975
- Tongue
- German
- Weight
- 421 KB
- Volume
- 58
- Category
- Article
- ISSN
- 0018-019X
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✦ Synopsis
Abstract
In the second communication the synthesis of para‐substituted 2‐methyl‐3‐phenylpropen(1)‐carboxylic acid derivatives is described: Phenylacetone compounds are formed by decarboxylation of a glycidicester; these react according to the Wadsworth‐Emmons (Wittig‐Horner)‐reaction with the corresponding phosphonates to the title compounds. NMR. data show the formation of the steric isomers of 3‐Phenyl‐2‐methyl‐propen‐1‐ and 3‐Phenyl‐2‐methylpropen‐2‐carboxylic acid derivatives.
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## Abstract The synthesis of __p__‐substituted 2‐methyl‐5‐phenyl‐penten(1)‐carboxylic acid derivatives is described: the formed __Grignard__ compounds react with ethylene‐oxide to the corresponding alcohols which are transformed by following reactions to the above mentioned compounds.
## Abstract In the first communication the synthetic methods are described for preparing aromatic analogues of juvenile hormone like activity. The para‐substituted 2‐methyl‐cinnamic acid derivatives are formed by a __Friedel__‐__Crafts__ acylation of a phenol, followed by the __Wadsworth__‐__Emmons
127. Substituierte 2,8-Diazaspiro[4,5]decan-l, 3-dione Untersuchungen uber synthetische Arzneimittel. 16. Mitteilung [l] von E. Jucker und R. Siiess (12. 11. 66) I) Verbindung I V mit R1 = H und RS = CH,C,H, wurde nach 48stdg. Kochen in konz. Salzsaure zu 55% unverandert zuruckgewonnen, wahrend der