Und yl, dodecyl and hexadecyl sulphonates were prepared w i t h y&-label i n t h e 1 -p o s i t i o n . The syntheses r e q u i r e t h e f o r m a t i o n o f a Grignard intermediate from t h e appropriate n-1 a l k y l bromide f o l l o w e d by c a r b o x y l a t i o n o f t h e Grignard w i t h
Synthesis and properties of 35S, 14C and 3H labeled S-alkyl glycerol ethers and derivatives
โ Scribed by William J. Ferrell; Antonio Garces; Etienne A. Desmyter
- Publisher
- Elsevier Science
- Year
- 1976
- Tongue
- English
- Weight
- 413 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0009-3084
No coin nor oath required. For personal study only.
โฆ Synopsis
P, adioactive S-alkyl glycerol ethers have been synlhesized with 3SS, 14C and 3tt labels as well as 311/35S double labels. Tile synthesized compounds were converted to various derivatives which can serve to characterize tile S-alkyl glycerol ethers. These included tile isopropylidene derivative, oxidation with periodate to the aldehyde followed by reduction with LiAIH4 to tile alcohol, and reaction of tile alcohol with acetic anhydride to form tile acetate derivative.
Chemical analysis, IR, NMR, zonal TLC profile scans and GLC showed all the products to be "-,997( pure.
Tile GLC behavior of the aldehyde and acetate derivatives of both S-alkyl glycerol ethers and O-alkyl glycerol ethers on EGSS-X was compared. C H3(CHz)nCHzOH ~ CH~EHz)I1CHzBr C H3(CHz)nCHzSH CHIS H m n fH,O" > CHI-S-C HI'(C H~ ~IC H-~ ~H,OH ,v CH,OH /j CHaOH IC H~-S-CHz(CHl)nCH~l C H~-S-CHI(CH,~C H , H/C~o v, HC--O~ /CH~ l ~.C\ i HzO-O / CH 3 V CHE'S-CHz(CH,),CH , CHi-S-CH~12H~)nCH, HzCO H โข HzC-O-~CH3 0 VII VIII
๐ SIMILAR VOLUMES
## Abstract Carbonyl sulfide (COS) was prepared by a replacement reaction from potassium thiocyanate (KSCN) in 50% sulfuric acid. ^14^CโCOS or ^35^SโCOS can be prepared by the same method, depending on the position of the label in the starting KSCN. The yield of the final product is in excess of 60