Some scientific research about 1608-26-0

Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data.Formula: P[N(CH3)2]3, If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 1608-26-0, in my other articles.

A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 1608-26-0, Name is Tris(dimethylamino)phosphine
, molecular formula is P[N(CH3)2]3. In a Article，once mentioned of 1608-26-0, Formula: P[N(CH3)2]3

The 1,3,2,4-diazadiphosphetidine ring is used for the construction of the bis(crown ether) derivative 1, which occurs as cis and trans isomers.Refluxing triethylene glycol dianilino ether 3 with hexamethylphosphorous triamide (HMPT) in toluene followed by addition of sulfur gave 1 as a crystalline material in isolated yields ranging from 25percent to 73percent.The compounds have been characterized by a combination of 1H, 13C, and 31P NMR and mass spectral data.The structural assignments of the two diastereoisomers are based on X-ray structural analysis.Crystal data at 291 K are as follows: cis-1*H2O a=11.030(9) Angstroem, b=11.169(3) Angstroem, c=18.101(13) Angstroem, alpha=85.68(4) deg, beta=87.06(6) deg, gamma=86.57(4) deg, Z=2, triclinic, space group <*>, R=0.087 for 5888 reflections with I>/=2.5?(I); trans-1*2CH2Cl2 a=11.757(3) Angstroem, b=11.140(4) Angstroem, c=9.393(1) Angstroem, alpha=65.51(2) deg, beta=101.12(2) deg, gamma=100.63(3) deg, Z=1, triclinic, space group <*>, R=0.054 for 3531 reflections with I>/=2.5?(I).In the cis isomer, a water molecule is encapsulated in the cavity formed by the two macrocyclic moieties facing each other.The trans isomer, which crystallizes with two dichloromethane molecules, lies on a crystallographic center of symmetry.The macrocyclic intermediate precursor 4 is characterized together with the bis(crown) derivative 5.The tervalent parent compounds are extremely sensitive to moisture.The macrocycle 8 containing a P(O)H fragment is a degradation product.

Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data.Formula: P[N(CH3)2]3, If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 1608-26-0, in my other articles.

Reference：
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate