Conversion of an Iodomethyl(phosphane)- into a Methylenephosphorane-Complex: Example of a Nucleophile-Catalyzed Isomerization Reactiondoi:10.1002/anie.198009401The isomerization of complexed (CH2I and PMe3) to give (CH2PMe3 and I) was observed in the case of (1) in the presence of NEt3. For...
Conversion of an Iodomethyl(phosphane)‐ into a Methylenephosphorane‐Complex: Example of a Nucleophile‐Catalyzed Isomerization ReactionThe complexes C5H5Rh(PMe3)C2H3R′ (R′ H, Me, Ph) and C5H5Rh(PR3)C2H4(PR3 PMe2Ph, PPri3) are... DCR Feser,H Werner - 《Angewandte Chemie International...
Question: This reaction is an example of conjugate addition of a nucleophile to an alpha, beta-unsaturated carbonyl. Draw the two resonance structures of the enolate anion intermediate for this reaction. Draw an R1 group in place of CoA. The R gr...
A number of these chemical systems show ... I Casinos - 《Die Angewandte Makromolekulare Chemie Applied Macromolecular Chemistry & Physics》 被引量: 0发表: 1994年 Who Activates the Nucleophile in Ribozyme Catalysis? An Answer from the Splicing Mechanism of Group II Introns Group II introns ...
Kinetic and X-ray structural studies of three mutant E. coli alkaline phosphatases: insights into the catalytic mechanism without the nucleophile Ser102. Escherichia coli alkaline phosphatase (EC 3.1.3.1) is a non-specific phosphomonoesterase that catalyzes the hydrolysis reaction via a phosphoseryl ...
Like most retaining enzymes, they use two glutamic acids as an acid/base and a nucleophile [25]. GH51 enzymes belong to clan A of GHs, so their active site is located at the N-terminal (β/α)8-barrel. Typical enzymes also possess a C-terminal β-sandwich domain that stabilizes the ...