Guanidinium-tagged Organocatalysts for Direct Aldol Reactions Jabbar Shah and J¨urgen Liebscher

[61] Simple linear amino acids such as alanine, valine, serine, isoleucine, catalyzed the Mannich reactions with excellent results (Scheme 8).. Three component Mannich

1.2.1 Relation Between Catalyst Selectivity and Detected Intermediate Ratio Combining the concept of selectivity determination by testing racemic catalysts as described by L LOYD

When bovine serum al- bumin (BSA) was used as a catalyst in the model reac- tion, product in a moderate yield of 45 % was obtained with 49/51 dr and 0 % ee (Table I, entry 8),

Following the success of azabox ligands in distinct asymmetric reactions, immobilization of these ligands on MeOPEG and Tentagel were carried out (Scheme 22).. 1, 4

35 forms the O-glycosidic bond in a different way; it is based on the base-catalyzed activation of the anomeric hydroxy group of the glycosyl donor.. The anomeric C-O bond is

(2010) found a positive impact between population and foreign direct investment. Trade opennness is also an important determinant of FDI. It is expected that trade present a

We shall analyse this in the context of evolutionary game dynamics (see Hofbauer and Sigmund 1998) for both direct and indirect reciprocity, i.e.. for the repeated Prisoner’s

This study is concerned with the foreign direct investments flows from and out of Turkey in terms of regional and sectoral distributions during the period of 2000-2007.. It is