Zobrazeno 1 - 10
of 68
pro vyhledávání: '"Jun Yong Kang"'
Autor:
Jeffrey Ash, Jun Yong Kang
Publikováno v:
Organic & Biomolecular Chemistry. 21:2370-2374
Thiophosphorylation of aza-o-QM and o-QM has been developed under mild conditions to synthesize functionalized thiophosphates.
Publikováno v:
The Journal of Organic Chemistry. 85:5087-5096
A reaction method is described for the one-step synthesis of 2-alkynylpyrimidines from 3,4-dihydropyrimidin-1H-2-thiones (DHPMs) via dehydrosulfurative Sonogashira cross-coupling with concomitant o...
Publikováno v:
Organicbiomolecular chemistry. 19(27)
An azide and transition metal-free method for the synthesis of elusive phosphonic, phosphinic, and phosphoric monoacids has been developed. Inert pentavalent P(V)-compounds (phosphonate, phosphinate, and phosphate) are activated by triflate anhydride
Autor:
Hai Huang, Jun Yong Kang
Publikováno v:
Synlett. 30:635-641
Organophosphonate analogues are important structural motifs that are present in bioactive natural products, pharmaceuticals, and agrochemicals. Because they are useful in a broad range of applications, much effort has focused on developing efficient
Publikováno v:
Organic Letters. 20:4938-4941
A metal-, toxic chloride reagent-free activating strategy of various phosphates has been developed. This method enables the facile synthesis of functional phosphates such as alkyl phosphates, aza phosphates, thiophosphate, and mixed diaryl phosphates
Publikováno v:
Angewandte Chemie. 130:6734-6738
A strategy for the direct functionalization strategy of inertial dialkyl phosphonates with hydroxy compounds to afford diverse mixed phosphonates with good yields and functional-group tolerance has been developed. Mechanistic investigations involving
Publikováno v:
Organic Letters. 20:2778-2781
A metal-free hydrophosphorylation of ynamides with diaryl phosphine oxides has been developed. A highly E-selective and β-regioselective hydrophosphorylation protocol has been established as a general method for the synthesis of diversely hydrophosp
Autor:
Jun Yong Kang, Hai Huang
Publikováno v:
Organic Letters. 19:5988-5991
A new class of Brønsted acid catalysts based on N-heterocyclic phosphorodiamidic acids (NHPAs) has been developed. The NHPA catalyst promotes phospha-Michael addition reaction of trialkylphosphites to in situ generated ortho-quinone methides (o-QMs)
Autor:
Nagaraju Molleti, Jun Yong Kang
Publikováno v:
Organic Letters. 19:958-961
A mild, efficient method for the synthesis of diaryl diazaphosphonates via 1,6-hydrophosphonylation/aromatization of p-quinone methides (p-QMs) with N-heterocyclic phosphine-thioureas has been developed. This transformation proceeds without any addit
Autor:
Jun Yong Kang, Hai Huang
Publikováno v:
Organic Letters. 19:544-547
An efficient oxidation-reduction condensation reaction of diazaphosphites with various nonacidic pronucleophiles in the presence of DIAD as a weak oxidant has been developed for carbon-heteroatom bond formation. This mild process affords structurally