Isoxazoline derivatives as P N ligands

• Main Authors: BERENS ULRICH, COZZI PIER GIORGIO, END NICOLE, STOESSEL CATHERINE
• Format: Patent
• Language: English
• Published: 25.07.2006
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM; APPARATUS THEREFOR; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; GENERAL METHODS OF ORGANIC CHEMISTRY; HETEROCYCLIC COMPOUNDS; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention relates to novel ligands of the phosphanylbenzothiophenyl-dihydroisoxazoline, phosphanyl-dihydrooxazolyl-indole and phosphanyl-dihydrooxazolyl-benzofuran type, especially compounds of formula I and mixtures of such compounds, wherein X is oxygen, sulfur, selenium or NQ, wherein Q is unsubstituted or substituted aryl, or alkyl or substituted alkyl; n is 0, 1, 2, 3 or 4; A1 and A2 are each an organic radical capable of bonding to phosphorus, especially unsubstituted or substituted alkyl, unsubstituted or substituted aryl, unsubstituted or substituted heterocyclyl, unsubstituted or substituted cycloalkyl, or -N(D)2 wherein D2 is alkyl or substituted alkyl; or A1 and A2 together with the bonding phosphorus atom form a ring, which may be unsubstituted or substituted; Y, Y', Y'' and Y''' are each independently of the other hydrogen or alkyl, substituted alkyl, unsubstituted or substituted aryl, or unsubstituted or substituted heterocyclyl, at least one of the radicals Y, Y', Y'' or Y''' being one of the mentioned radicals with the exception of hydrogen; and Z, when present, is a substituent, it being possible when a plurality of substituents Z is present for those substituents to be selected independently of one another, and to processes for their preparation, to novel precursors and intermediates, to complexes with the said ligands, to their preparation and to their use as catalysts in organic synthesis (especially asymmetric organic synthesis).