210169-40-7 Usage
Reaction
Biaryl bisphosphine ligand with narrow dihedral angle. The DTBM SEGPHOS? ligand, as the ruthenium complex, gives superior enantioselectivity and diastereoselectivity through dynamic kinetic resolution in the asymmetric hydrogenation of a-substituted-β-ketoesters useful in the synthesis of carbapenum antibiotics.
With rhodium, preferential enantioselective hydrogenation of more reactive olefin of extended enone structure.
Rhodium catalyzed chemo-, regio, and entantioselective [2 + 2 + 2] cycloaddition of alkynes with isocyanates.
With copper, enantioselective cross Aldol-type reaction of acetonitrile.
With copper, enantioselective vinylsilane alkenylation of aldehydes.
Gold carbene mediated stereoselective cyclopropanation of propargyl esters.
With copper, enantioselective 1,2-reduction of ketones, and 1,4-reduction of a α,β-usaturated esters.
With copper, catalytic enantioselective Mannich-type reaction.
Enantioselective fluorination of b β-keto esters, tert-butoxycarbonyl lactones and lactmes with Sodeoka's Pd-aqua complex and a fluorinating reagent.
Rh-catalyzed intramolecular olefin or carbonyl hydroacylation.
Uses
Catalytic ligand for:Enantioselective synthesis of secondary allylic alcohols via enantioselective reductions of α,β-unsaturated ketonesStereoselective preparation of cyclohexanone derivatives via rhodium-catalyzed rearrangement of allyl or allenic cyclobutanolsCu-catalyzed asymmetric conjugate reduction of beta-substituted unsaturated phosphonates to give optically active beta-stereogenic alkylphosphonatesAsymmetric synthesis of cyclohexenones via Rh-catalyzed desymmetrization through enantioselective C-C bond activation and ring expansion of allenyl cyclobutanolsEnantioselective synthesis and crystal structure of P-stereogenic alkynylphosphine oxides by Rh-catalyzed [2+2+2] cycloaddition
Check Digit Verification of cas no
The CAS Registry Mumber 210169-40-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,0,1,6 and 9 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 210169-40:
(8*2)+(7*1)+(6*0)+(5*1)+(4*6)+(3*9)+(2*4)+(1*0)=87
87 % 10 = 7
So 210169-40-7 is a valid CAS Registry Number.
