Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Through Differentiation of Primary Hydroxyls Using Bulky Protecting Groups

1 Through Differentiation of Primary Hydroxyls Using Bulky Protecting Groups [Pg.47]

SCHEME 2.13 Selective protection of the primary hydroxyl using bulky groups. [Pg.48]

SCHEME 2.16 Preparation of the orthogonally protected galactoside 36. NIS, A-iodo-succinimide Tol, 4-tolyl. [Pg.49]

SCHEME 2.17 Regioselective tin-mediated protection of glucoside 37, galactoside 38, and mannoside 39. DIPEA, diisopropylethylamine Ts, tosyl. [Pg.50]

SCHEME 2.18 Regioselective isopropylidenation among the three secondary hydroxyls. PTS A, / -toluenesulfonic acid. [Pg.50]

SEARCH

1,2-hydroxyl groups, protecting group

Bulkiness

Bulky groups

Bulky protective groups

Groups, use

Hydroxyl group, protection

Hydroxyl-protecting groups

Primary groups

Primary hydroxyls

Primary protected

Primary protection

Protecting groups, primary hydroxyl

Protection of 3-hydroxyl groups

Use of protecting groups