## Abstract The preparation of 1‐[ (3′‐^14^C)‐Allyl]‐3,4‐methylene dioxy‐,1‐[(3′‐^14^C)‐allyl]‐3‐methoxy‐4,5‐methylene dioxy‐, and 1‐[(3′‐^14^C)‐allyl]‐3,4,5‐trimethaoxy benzenes is described. The ^14^C‐label was introduced into the 3′‐carbon of the allylic side chain via the Wittig reaction.
The synthesis of estragole labelled with deuterium ln single positions of the allylic side chain. In single positions of the allylic side chain
✍ Scribed by D. Monti; P. Gramatica; P. Manitto
- Publisher
- John Wiley and Sons
- Year
- 1979
- Tongue
- French
- Weight
- 341 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0022-2135
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✦ Synopsis
y-2H2]Estragole was synthesized [ methylene-112] -benzyl chloride; [ p-2H] estragole via reduction vinylation of 4-methoxy-2 of 3-(~-anisyl)-propyne with bis-3-methyl-2-butylborane (obtained from LiAl H4 , BF3 etherate and 2-methyl-2-butene) ; k-2H]estragole 2 ? y & cinnamaldehyde with NaBH3CN.
📜 SIMILAR VOLUMES
## Abstract α‐Methylstyrenes with all three side chain carbons specifically ^14^C‐labelled have been synthesised by Wittig reactions between the appropriately labelled acetophenones or methylene triphenylphosphoranes. The yields in all cases were good and any radiochemical impurities could be readi
Synthesis of Retinals Fluorinated at Odd-Numbered Side-Chain Positions and of the Corresponding Fluorobacteriorhodopsins. -A series of title compounds such as the 9-demethyl-9-fluororetinal ( XIV) is prepared by the scheme depicted. These stable trans-fluororetinals are incubated with bacterio-opsi
Ortho-and para-f luoro-a-methylstyrenes specifically 14C-labelled in all three positionsof the side chain have been synthesized by a modified Wittig reaction. synthesized as intermediates. The yields in all cases were good and any radiochemical impurities could be readily removed by careful fraction