《Towards the preparation of stable cyclic amino(ylide)carbenes》 was published in Molecules in 2020. These research results belong to Steinert, Henning; Schwarz, Christopher; Kroll, Alexander; Gessner, Viktoria H.. HPLC of Formula: 696-59-3 The article mentions the following:
The exptl. and computational studies on the synthesis and stability of CAYCs based on pyrroles with trialkyl onium groups was described. Attempts to isolate two CAYCs with trialkyl phosphonium and sulfonium ylides resulted in the deprotonation of the alkyl groups instead of the formation of the desired CAYCs. In case of the PCy3-substituted system, the corresponding ylide was isolated, while deprotonation of the SMe2-functionalized compound led to the formation of ethene and the thioether. Detailed computational studies on various trialkyl onium groups showed that both the α- and β-deprotonated compounds were energetically favored over the free carbene. The most stable candidates were revealed to be α-hydrogen-free adamantyl-substituted onium groups, for which β-deprotonation was less favorable at the bridgehead position. Overall, the calculations showed that the isolation of CAYCs should be possible, but careful design was required to exclude decomposition pathways such as deprotonations at the onium group. In the experimental materials used by the author, we found 2,5-Dimethoxytetrahydrofuran(cas: 696-59-3HPLC of Formula: 696-59-3)
2,5-Dimethoxytetrahydrofuran(cas: 696-59-3) is a member of ether. When aromatic ethers are exposed to halogen in the presence or absence of a catalyst, they undergo halogenation, such as bromination.HPLC of Formula: 696-59-3
Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem