Chemoselective Removal of Allylic Formyloxy Group Using Sml2
摘要:
A variety of allylic formates are chemoselectively transformed into the corresponding olefins in excellent yields on treatment with Sml2 in THF-HMPA-H2O (20:5:1), even though allylic acetate and allylic ether groups are present in the same molecule.
Chemoselective Removal of Allylic Formyloxy Group Using Sml2
摘要:
A variety of allylic formates are chemoselectively transformed into the corresponding olefins in excellent yields on treatment with Sml2 in THF-HMPA-H2O (20:5:1), even though allylic acetate and allylic ether groups are present in the same molecule.
The invention relates to a method for producing a polymer in water, comprising the preparation of an emulsion comprising a HASE-type copolymer and a mixture of a monomer comprising at least one polymerisable olefinic unsaturation and a radical-generating compound, followed by the polymerisation of the emulsified monomer by heating to a temperature higher than the temperature required for the polymerisation reaction. The invention also relates to the polymer produced in this way and to the use thereof.