The inverse electron demand Diels-Alder reactions of electron-deficient heterocycles are significant cycloaddition reactions for the total synthesis of natural products containing highly substituted and functionalized heteroaromatic ring systems.

Trichloroacetimidate Reagents

Trichloroacetimidates are also commonly employed as alcohol alkylation reagents, particularly when existing functionality is not acid sensitive.

Selective Metalations

Selective Metalations using i-PrMgCl·LiCl and s-BuMgCl·LiCl

Tetrakis(dimethylamino)ethylene (TDAE)

In 2001, Professor William Dolbier, Jr., at the University of Florida reported1 an approach to nucleophilic trifluoromethylation based on the generation of a trifluoromethyl anion using CF3I in the presence of a powerful twoelectron reductant, tetrakis(dimethylamino)ethylene (TDAE)

Q-Phos

Developed by Professor John Hartwig, pentaphenyl(di-tert-butylphosphino)ferrocene (Q-Phos) has emerged to be a premier ligand in coupling reactions with its remarkably broad utility in a variety of C–N, C–O, and C–C bondforming reactions.

Aerobic Alcohol Oxidation Solutions

Alcohol oxidation is one of the most frequently performed oxidation reactions in organic chemistry. The aldehyde and ketone products of alcohol oxidation are useful intermediates en route to complex molecules.

Organic Azides and Azide Sources

Since the preparation of the first organic azide, phenyl azide, by Peter Griess in 1864 this energy-rich and versatile class of compounds has enjoyed considerable interest.

Sodium Triacetoxyborohydride

Sodium triacetoxyborohydride

Lithium Aminoborohydride (LAB) Reagents

Lithium aminoborohydride (LAB) reagents are a new class of powerful and selective reagents developed in the laboratory of Professor Bakthan Singaram at the University of California, Santa Cruz.

Organosilanols

Over the past several years, the Pd-catalyzed cross-coupling of silicon compounds (Hiyama coupling) has rapidly gained acceptance as a suitable alternative to more commonly used methods such as Stille (Sn), Kumada (Mg), Suzuki (B), and Negishi cross-couplings (Zn).

Imidazolium Derived Reagents

N-Acylimidazoles were recognized in the early 1950s as reactive intermediates suitable for the acylation of amino compounds. The search for better coupling reagents than DCC led to the development of CDI (1,1’-carbonyldiimidazole) and related carbonylimidazoles.

Functionalized Alkynes

Alkynes contain a highly versatile functional group that may be utilized for numerous reactions such as electrophilic additions of hydrogen, halogens, hydrogen halides, or water; metathesis; hydroboration; oxidative cleavage; C–C coupling; and cycloadditions

BINAP/SEGPHOS® Ligands and Complexes

We present an article concerning BINAP/SEGPHOS® Ligands and Complexes.

Macmillan Imidazolidinone Organocatalysts

In collaboration with Materia, Inc., we are pleased to offer six imidazolidinone OrganoCatalysts™.

Maruoka Catalysts

Asymmetric phase transfer catalysis using the Maruoka catalysts has proven to be an ideal method for the enantioselective preparation of natural and unnatural α-alkyl and α,α-dialkyl-α-amino acids from glycine derivati

Chiral Phosphoric Acids: Versatile Organocatalysts with Expanding Applications

TRIP and TiPSY Chiral Phosphoric Acid Catalysts

1/4