Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels. 70-47-3, Name is H-Asn-OH, molecular formula is C4H8N2O3. In an article, author is Lafreniere, J. Daniel,once mentioned of 70-47-3, Application In Synthesis of H-Asn-OH.
Structure-property-reactivity studies on dithiaphospholes
The reaction of either toluene-3,4-dithiol or benzene dithiol with phosphorus(iii) trihalides generates the corresponding benzo-fused 1,3,2-dithiaphospholes, RC6H3S2PX (R = Me (1), R = H (2); X = Cl, Br, I). The P-chloro-dithiaphospholes undergo: (a) halogen abstraction reactions with Lewis acids forming phosphenium cations; (b) substitution with LiHMDS base and; (c) reduction chemistry with sodium metal to generate the P-P sigma-bonded dimer, (RC6H3S2P)(2). Reduction catalysis of aldehydes with pinacolborane using dithiaphospholes is compared with their dioxaphosphole and diazaphosphole counterparts as pre-catalysts, revealing interesting differences in the reactivity of this series of compounds.
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