I hope this article can help some friends in scientific research. I am very proud of our efforts over the past few months and hope to 68737-65-5, help many people in the next few years.category: catalyst-ligand
A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, category: catalyst-ligand, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 68737-65-5, Name is (1R,2R)-N,N’-Dimethyl-1,2-cyclohexanediamine, molecular formula is C8H18N2. In a Article, authors is Sato, Mitsunobu，once mentioned of 68737-65-5
(-)546-trans-(1+) and (+)546-Lambda-(1+), which had been newly prepared, reacted with concentrated HCl to give, respectively, (-)435-trans-(SSSS)-(1+) and (+)435-trans-(SRRS)-(1+) stereospecifically, where R,R-dmchxn=(1R,2R)-N,N’-dimethyl-1,2-cyclohexanediamine.The stereospecific formation of (+)546-Lambda-(1+) has been observed.The trans-dichloro complexes and their precursors have been characterized by elemental analysis and by electronic absorption, circular dichroism, 1H NMR, and 13C NMR spectroscopies.An X-ray crystal-structure determination was undertaken on one of the trans-dichloro isomers, (+)435-Cl*HCl*2H2O, whose structure could not be characterized by usual spectroscopies.This complex forms triclinic crystals with a=11.395(10) Angstroems, b=11.674(8) Angstroems, c=11.031(8) Angstroems, alpha=98.62(6)o, beta=102.48(8)o, gamma=118.24(5)o, and Z=2, in the space group P1.Least-squares refinements converged at an R value of 0.041 for 4870 independent reflections with Fo>3.The complex cation has an approximately twofold symmetry.The conformations of the two five-membered chelate rings are both lambda.The arrangements of the groups around the the two secondary nitrogen atoms are R and S in each diamine.The isomerization from the (+)435-trans-dichloro complex to the (-)435 isomer has been observed under mild basic conditions.
I hope this article can help some friends in scientific research. I am very proud of our efforts over the past few months and hope to 68737-65-5, help many people in the next few years.category: catalyst-ligand
Reference：
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI