The preparation of 2-(N-alkylamino)benzothiazoles via regioselecive N-alkylation of 2-aminobenzothiazoles has been accomplished by using benzylic alcohols as alkylating agents.
With the help of modulator synthesis
method, a mesoporous Zr-based
metal–organic framework, [Zr6O4(OH)8(H2O)4(TADIBA)4]·24DMF·45H2O (DMF = N,N-dimethylformamide,
H2TADIBA = 4,4′-(2H-1,2,4-triazole-3,5-diyl)
dibenzoic acid), namely, JLU-MOF58, was successfully
constructed. JLU-MOF58 having reo topology
is constructed by the bent ligands with Lewis basic sites and 8-connected
Zr6 clusters with Lewis and Brønsted acid sites. It
not only possesses two types of mesoporous cages: octahedral and cuboctahedral
(2.76 and 4.10 nm), with a pore volume of 1.76 cm3 g–1, but also displays excellent chemical stability in
acid and base aqueous phase. Benefiting from the Brønsted and
Lewis acid sites, Lewis basic sites, excellent chemical stability,
and the mesoporous cages incorporated in the framework, JLU-MOF58 can be regarded as a remarkably efficient heterogeneous catalyst
that exhibits excellent catalytic efficiency for CO2 conversion.
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