发明名称 |
CHIRAL INTERMEDIATES USEFUL FOR THE PREPARATION OF HYDROXYPHOSPHINE LIGANDS |
摘要 |
A compound of formula (I), wherein R1 is hydrogen or a hydroxyl protecting group; and R2 and R3 are same or different and are independently selected from halogen or —O—SO2—X; wherein X is —C1-C4 alkyl; C1-C4 alkyl substituted with one or more halogen; or substituted or unsubstituted phenyl wherein said phenyl substituent is selected from halogen, nitro and C1-C4 alkyl; provided that when R3 is bromine, X is not p-toluoyl; and a process for the preparation thereof. |
申请公布号 |
EP2635547(A4) |
申请公布日期 |
2014.10.15 |
申请号 |
EP20110837643 |
申请日期 |
2011.11.01 |
申请人 |
UPL LIMITED |
发明人 |
SHROFF, JAIDEV, RAJNIKANT;SHROFF, VIKRAM, RAJNIKANT;SHANKER, BIRJA |
分类号 |
C07C31/135;C07F9/50 |
主分类号 |
C07C31/135 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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