Patent ID: 7507853
Filing Date: 2009-03-24
Classification: C12P

Abstract:
1. A process for the preparation of a compound of the formula: wherein one of R wherein R and the other one of R R m represents zero or 1; and n represents a numeral from 1 to 4; and, if n represents 1, m represents zero or 1, Y represents the monovalent groups —O—Y wherein R wherein R wherein one of R wherein R wherein R Y if n represents 2, m represents zero, Y represents a bivalent group selected from the group consisting of wherein x is a numeral from 2 to 20, wherein y is a numeral from 1 to 30, wherein z represents zero or a numeral from 2 to 10; and if n represents 3, m represents zero and Y represents a trivalent group selected from the group consisting of wherein R and, if n represents 4, m represents zero and Y represents a tetravalent group of the partial formula: characterised in that in a compound of the formula: wherein R if n represents 1 with the monovalent group —O—Y if n represents 2, with one of the bivalent groups (D), (E), (F), (G) or (H); or, if n represents 3, with the trivalent group of the partial formulae (K) or (L); or, if n represents 4, with the tetravalent group of the partial formula (M).