The transformation of simple hydrocarbons into more complex and valuable products via catalytic C–H bond functionalisation has revolutionised modern synthetic chemistry. In an article, author is Clegg, Jack K., once mentioned the application of 1074-36-8, Name is 4-Mercaptobenzoic acid, molecular formula is C7H6O2S, molecular weight is 154.1863, MDL number is MFCD00016617, category is thiomorpholine. Now introduce a scientific discovery about this category, Application In Synthesis of 4-Mercaptobenzoic acid.
The sequential interaction of preformed [Cu-2(L-1)(2)(THF)(2)] (where H2L1 is 1,1-(1,3-phenylene)-bis(4,4-dimethylpentane-1,3-dione incorporating a 1,3-phenylene linker between its two beta-diketone domains) and [Cu-2(L-4)(2)]center dot 2H(2)O (where H2L4 is 1,1-(4,4′-oxybiphenylene)-bis(4,4-dimethylpentane-1,3-dione) incorporating a flexible oxybiphenylene linkage between the two beta-diketone groups) with the potentially difunctional aliphatic non-planar co-ligands, N-methylpiperazine (mpip), N,N’-dimethylpiperazine (dmpip) and 1,4-thiomorpholine (thiomorph) is reported. A series of extended molecular assemblies exhibiting a range of di- and tetranuclear assemblies were obtained and their X-ray structures determined. Dinuclear [Cu-2(L-1)(2)(mpip)(2)]center dot 2mpip incorporates two 5-coordinate, square pyramidal metal centres as does tetranuclear [{Cu-2(L-1)(2)}(2)(dmpip)(2)]center dot 2dmpip. In contrast, dinuclear [Cu-2(L-1)(2)(dmpip)(4)]center dot dmpip and [{Cu-2(L-1)(2)}(2)(thiomorph)(4)]center dot 3thiomorph each contain two 5-coordinate and two 6-coordinate centres. Each of [Cu-2(L-4)(2)(THF)(2)]center dot 2THF and Cu-2(L-4)(2)(mpip)(2)]center dot H2O incorporate only 5-coordinate metal centres, with the latter complex forming a one-dimensional hydrogen bonded ribbon-like structure directed along the crystallographic a-axis. In keeping with the documented tendency for the smallest, least strained assembly to form in supramolecular self-assembly processes, the incorporation of the flexible oxy linkage between the 4,4′-linked phenylene rings of H2L3 results in generation of a dinuclear [Cu2L2] species rather than a trinuclear (triangular) [Cu3L3] species of the type formed by the more rigid bis-beta-diketonato ligand analogue in which the biphenylene rings separating the beta-diketone domains are directly coupled in their 4,4′ positions.
The catalyzed pathway has a lower Ea, but the net change in energy that results from the reaction is not affected by the presence of a catalyst. Interested yet? Read on for other articles about 1074-36-8, you can contact me at any time and look forward to more communication. Application In Synthesis of 4-Mercaptobenzoic acid.
Reference:
Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem