Hughes–Ingold symbol: Difference between revisions
Content deleted Content added
No edit summary Tag: Reverted |
Restored revision 1165704313 by Fadesga (talk): Prior to all of User:Jeaucques Quœure's mistakes |
||
| Line 1: | Line 1: | ||
{{confused|Hughes–Ingold rules}} |
{{confused|Hughes–Ingold rules}} |
||
A '''Hughes–Ingold symbol''' describes various details of the [[reaction mechanism]] and overall result of a [[chemical reaction]].<ref>{{Cite journal|last=Gawley|first=Robert E.|date=1999-06-04|title=A proposal for (slight) modification of the Hughes–Ingold mechanistic descriptors for substitution reactions|journal=Tetrahedron Letters|volume=40|issue=23|pages=4297–4300|doi=10.1016/S0040-4039(99)00780-7|issn=0040-4039|doi-access=free}}</ref> For example, an [[SN2 reaction|S<sub>N</sub>2 reaction]] is a [[substitution reaction]] "S" by a [[nucleophilic]] process "N" that is [[bimolecular]] ("2" [[molecularity|molecular entities]] involved) in its [[rate-determining step]]. By contrast, an [[E2 reaction]] is an [[elimination reaction]], an S<sub>E</sub>2 reaction involves [[electrophilic substitution]], and an [[SN1 reaction|S<sub>N</sub>1 reaction]] is unimolecular. The system is named for British chemists [[Edward D. Hughes]] and [[Christopher Kelk Ingold]]. |
A '''Hughes–Ingold symbol''' describes various details of the [[reaction mechanism]] and overall result of a [[chemical reaction]].<ref>{{Cite journal|last=Gawley|first=Robert E.|date=1999-06-04|title=A proposal for (slight) modification of the Hughes–Ingold mechanistic descriptors for substitution reactions|journal=Tetrahedron Letters|volume=40|issue=23|pages=4297–4300|doi=10.1016/S0040-4039(99)00780-7|issn=0040-4039|doi-access=free}}</ref> For example, an [[SN2 reaction|S<sub>N</sub>2 reaction]] is a [[substitution reaction]] ("S") by a [[nucleophilic]] process ("N") that is [[bimolecular]] ("2" [[molecularity|molecular entities]] involved) in its [[rate-determining step]]. By contrast, an [[E2 reaction]] is an [[elimination reaction]], an S<sub>E</sub>2 reaction involves [[electrophilic substitution]], and an [[SN1 reaction|S<sub>N</sub>1 reaction]] is unimolecular. The system is named for British chemists [[Edward D. Hughes]] and [[Christopher Kelk Ingold]]. |
||
Latest revision as of 08:08, 25 April 2024
A Hughes–Ingold symbol describes various details of the reaction mechanism and overall result of a chemical reaction.[1] For example, an SN2 reaction is a substitution reaction ("S") by a nucleophilic process ("N") that is bimolecular ("2" molecular entities involved) in its rate-determining step. By contrast, an E2 reaction is an elimination reaction, an SE2 reaction involves electrophilic substitution, and an SN1 reaction is unimolecular. The system is named for British chemists Edward D. Hughes and Christopher Kelk Ingold.
References[edit]
- ^ Gawley, Robert E. (1999-06-04). "A proposal for (slight) modification of the Hughes–Ingold mechanistic descriptors for substitution reactions". Tetrahedron Letters. 40 (23): 4297–4300. doi:10.1016/S0040-4039(99)00780-7. ISSN 0040-4039.
 | This chemical reaction article is a stub. You can help Wikipedia by expanding it. |