(263) A cyclopropyl
group is comprised of three carbons that form a strained, three-membered ring.
Guckert JB, Hood MA, White DC (1986) Phospholipid ester-linked fatty acid profile changes during nutrient deprivation of Vibrio cholerae: increases in the trans/cis ratio and proportions of cyclopropyl
 Nonstandard abbreviations: [CB.sub.1], cannabinoid 1; XLR-11, [1-(5-fluoropentyl)indol-3-yl]-(2,2,3,3- tetramethylcyclopropyl)methanone; TMCP, 2,2,3,3-tetramethy I cyclopropyl
; [K.sub.i], receptor-binding affinity; HRMS, high-resolution mass spectrometry; LC, liquid chromatography; IDA, information-dependent acquisition; MS/MS, tandem MS; RT, retention time.
A second group is selected from the group consisting of an aryl, an alkyl of 1 to 4 carbon atoms, cyclopropyl
, cyclopentyl, cyclohexyl, -dialkoxyalkyl and -hydroxyalkyl.
Concentration of key phospholipids fatty acid groups (ng PLFA/ g soil) in soil sampled at 4 times from SB and SR treatments Data presented for saturated (Sat.), hydroxylated (Hydrox.), branched (Branch), mono-unsaturated (Mono-unsat.), poly-unsaturated (Poly-unsat.), and cyclopropyl
(Cycloprop.) fatty acids, the ratio of saturated to mono-unsaturated fatty acids, and total fatty acids.
bromosilane was prepared for the first time by cyclizing trimethoxy vinyl silane with methylene iodide using the Simmons-Smith reaction.
In recent work, the Charette group showed that 1,2,3-substituted cyclopropyl
groups could be prepared by employing an alkylated Simmons-Smith reagent instead of the usu al methylene species (eq.
Since the rearrangement product (shown to be an alpha-glycoside) was a mixture of two diastereomers only, it was possible to separate them and obtain both enantiomers of our starting [beta]-lactam, Glycals can also be used for conversion to cyclopropyl
The ratio of cyclopropyl
fatty acids to their precursors, a PLFA indicator of stress, decreased in the treatments with bone meal and oyster shell (Table 4).