Squalene, which has the most notable example of tail-to-tail coupling, is formed by the joining of two equivalents of farnesyl pyrophosphate.
Replacement of two equivalents of cadmium II) salt by two equivalents of nickel II) nitrate hexahydrate results in the heteropolymer, [Ni2Cd tren)2(NCS)6]n (2).
The synthesis of complex 12 was achieved by treating two equivalents of benzylmagnesium chloride with 11 [37].
Fmoc-protected amino acids were activated for coupling with an equi-molar amount of HATU and two equivalents of DIEA.
The key synthetic step involves coupling of diaminobiphenyl 11 with two equivalents of chlorotriazine 10 under microwave conditions.
In addition, a nearly 100-fold increase in emission intensity was determined upon the addition of two equivalents Hg2+ ions.
Consequently, a bis ethylene carbonate) bis(thiol) is obtained if one equivalent diamine is reacted with two equivalents of coupler.
Acetaldehyde azine (AcAz) underwent 'crisscross' addition with two equivalents of phenyl isocyanate to form a one-to-two adduct in a moderate yield (63.0%).
Whereas complex 10 was synthesized by reacting the TiCl4(THF)2 with two equivalents of MeLi and subsequent reaction with sodium salt of aminopyridine ligand (Scheme 6) [39].
Gd-DTPA was prepared by dissolution of two equivalents of Gd2O3 in 0.04 M DTPA to obtain 0.04 M Gd-DTPA solution.
The reaction of the diarylated ligand (4, two equivalents) with FeBr2 in THF affords 1,1′,2,2′-tetrakis pentafluorophenyl -4,4′-di-tert-butylferrocene (6).
