## 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 O- and P-fluoro-α-methylstyrenes labelled with carbon-14 in the side chain
✍ Scribed by H. M. Ali; C. A. Barson; P. L. Coe
- Publisher
- John Wiley and Sons
- Year
- 1985
- Tongue
- French
- Weight
- 191 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0022-2135
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✦ Synopsis
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 fractional distillation.
📜 SIMILAR VOLUMES
## 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.
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.
## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v
## Abstract 1‐Nitro‐9/dimethylaminopropylamino/‐acridine dihydro‐chloride /C‐283, ‘Ledaarin’/ is used as an anti‐twnor drug, In view of the studies on its mechanism of action. the syntheses of two specimens of this compound labelled with radioisotopes have been carried out. One of them contained C^