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ASYMMETRIC SYNTHESIS OF ALLYL OR ALLENE OXINDOLES
ASYMMETRIC SYNTHESIS OF ALLYL OR ALLENE OXINDOLES
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机译:烯丙二烯或异戊烯二氧吲哚的不对称合成
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摘要
The invention concerns processes for the preparation of a compound of the formula I comprising contacting a compound of formula II with a catalyst, said catalyst comprises (i) at least one of Pd and Cu and (ii) one or more of diamine, diphosphine and aminophosphine ligands; wherein Z is -C(R5)(R6)-C(R2)=C(R3)(R4) and Y is -C(R3)(R4)-C(R2)=C(R5)(R6) or Z is -C(R5)(R6)-C≡C-R3; Y is or -C(R3)=C=C(R5)(R6); X is NH, NR15, O or S; a is O or an integer from 1 to 4 and R1 -R7 and R15 are as defined in the specification.
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