Most of the proposed indicators work well when the leaving group is a halogen, but poorly in the other cases (carboxylates, sulphates, phosphinates). This suggests that it is very difficult to devise simple reactivity indicators for the intrinsic quality of a leaving group, and supports recent...
Thus, 1,2,3-triazoles are shown to be good leaving groups in purine chemistry. The title compounds exhibit interesting levels of fluorescence with quantum yields of up to 53%.Armands KovaļovsIrina NovosjolovaĒrika BizdēnaInga Bižāne...
ChemInform Abstract: Urea as Leaving Group in the Synthesis of 3-(tert-Butyl)perhydro-1,5,3-dithiazepine. U. Wellmar, "Urea as leaving group in the synthesis of 3-(tert- butyl)perhydro-1,5,3-dithiazepine," Journal of Heterocyclic Che- mistry, vol. ... U Wellmar - 《Cheminform》...
Re: When is OH a good leaving group? «Reply #4 on:December 19, 2018, 03:41:15 PM » The conversion of OH groups to oxonium ions [ROH2]+is when it's a good LG. You could also modify the OH functionality to make it an even better LG, since in general alcohols are pretty ...
J Org Chem 50:885-886Boyd DB (1985) Leaving group ability and pKa in elimination reactions. J Org Chem 50:885–886 View ArticleBOYD, D. B. Leaving group ability and pKa in elimination-reactions. Journal of Organic Chemistry, v. 50, n. 6, p. 885-886, 1985....
Entering group, leaving group, and cis effects of alicyclic primary amines in substitution reactions of platinum(II) complexes containing sulfur-bonded ... PD Braddock,R Romeo,ML Tobe - 《Inorganic Chemistry》 被引量: 126发表: 1974年 Entering group, leaving group, and cis effects of alicyclic...
organic chemistry, reviewnitration, denitrationChemInform 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...
ChemInform Abstract: Investigations on Leaving Group Based Intra- versus Intermolecular Glycoside Bond Formation. ChemInform Abstract: Investigations on Leaving Group Based Intra- versus Intermolecular Glycoside Bond Formation.doi:10.1002/chin.200107177......
(lower on per. table). I also understand that a good leaving group is a weak base so it is stable. But it makes no sense to me. that the same molecule can attack the carbon that can be good for leaving the carbon. Is there ever a time in an sn2 reaction where Iodine is leaving...
[11] or the optimized combinations of the leaving group with positional modification.[12] However, high yielding a-selective sialylation is still problematic... Hsu, CHChu, KCLin, YSHan, JLPeng, YSRen, CTWu, CYWong, CH - 《Chemistry A European Journal》 被引量: 0发表: 2010年 加载更多...