79341-44-9

Upstream product

• 61633-35-0 <1-13C>-3-phenylpropynoic acid 
• 3228-27-1 [13C]-formaldehyde 
• 536-74-3 phenylacetylene 

Downstream Products

• 1309600-11-0 C₁₅⁽¹³⁾CH₁₅NO₂S 
• 1309600-12-1 C₂₅⁽¹³⁾CH₃₅NO₃SSi 
• 1309600-13-2 C₁₉⁽¹³⁾CH₂₁NO₃S 
• 79341-42-7 (3-Phenyl-<1-13C>-2-propinyl)malonsaeure-diethylester 
• 79341-38-1 Benzyl-(5-phenyl-<3-13C>-4-pentenyl)-ether 
• 79341-41-6 5-Phenyl-<3-13C>-4-pentinsaeure 
• 79341-40-5 5-Phenyl-<3-13C>-4-pentin-1-ol 
• 79341-39-2 (Z)-5-Phenyl-<3-13C>-4-penten-1-ol 
• 79341-43-8 3-Brom-1-phenyl<3-13C>-1-propin 

Relevant academic research and scientific papers

Gold(i)-catalyzed cycloisomerization of alkynyl hydroxyallyl tosylamides to 4-oxa-6-azatricyclo[3.3.0.02,8]octanes

Reaction of alkyne allyl alcohols tethered with N-(p-tolylsulfonamide) in the presence of a cationic gold(i) catalyst gave new cycloisomerization products, 4-oxa-6-azatricyclo[3.3.0.02,8]octanes.

Degenerate Carbon Skeleton Isomerization of the Cyclopentyl Cation in the Gas Phase. Experimental and Theoretical Evidence for the Existence of a Pyramidal C5H9(+) Cation as an Intermediate in the Unimolecular Ethylene Elimination

The investigation of 13C2-labelled isotopomeric bromocyclopentanes (5a, b), cyclobutylmethyl bromide (6a) and 5-bromo-1-pentenes (7a, b) clearly demonstrates, that unimolecular ethylene loss from the gaseous + ions generated from both the cyclic and acyclic precursors is preceded by complete carbon scrambling.Whereas the degenerate isomerization 8a 8b can, in principle, proceed either via the bisected cyclobutylmethyl cation 9 or via the non-classical, pyramidal cation 3, the MINDO/3 calculations reveal, that ethylene loss from C5H9+ involves 3 as an intermediate.From 3 a transition state is reached which can be regarded as a partially opened cyclopropyl cation "solvated" by interaction with C2H4.Descriptions of the syntheses of the 13C2-labelled bromides are given.