Dhillon, Ranjit S.; Singh, Jasvinder; Gautam, Veena K., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1988, vol. 27, # 1-12, p. 689 - 690
PAF-induced in vitro platelet-aggregation and in vivo hypotension tests. Several of these compounds exhibited more potent activity than the structurally related 2-[N-acetyl-N-[[[[2-methoxy-3-[(octadecylcarbamoyl) oxy]propoxy]carbonyl]amino]methyl]-1-ethylpyridinium chloride (CV-6209, 3) in the in vitro assay, whereas all showed less potency in the in vivo test. The role of both the substituent nature
Cross-metathesis reactions of α,β-unsaturated sulfones and sulfoxides in the presence of molybdenum and ruthenium pre-catalysts were tested. A selective metahesis reaction was achieved between functionalized terminalolefins and vinyl sulfones by using the ‘second generation’ ruthenium catalysts 1c–h while the highly active Schrock catalyst 1b was found to be functional group incompatible with vinyl
The catalytic decarbonylation reaction of aliphaticcarboxylicacids can be carried out in the presence of an iron complex, and it proceeds smoothly to give alpha-olefins with high selectivity.
An unusual recycling Mitsunobu reaction proved to be successful to couple two fragments in the course of the synthesis of the hydrophobic moiety of rhamnolipid derivatives. Based on the obtained pivotal intermediate, a one pot ‘cross-metathesis/reduction’ approach gave access to structural variations of the side chains. Further study of these molecules will contribute to a better understanding of the
A facile method of the transformation of esters to vinyl compounds was developed by using the electroreductive 1,2-elimination as a key step. β-Hydroxysulfones were electrochemically reduced to vinyl compounds in good yields. Hydroxyolefins could be also prepared from the corresponding lactones.