Title:
NOVEL METHOD OF CATALYTIC REMOVAL OF PROTECTIVE GROUP WITH ALLYL GROUP
Document Type and Number:
WIPO Patent Application WO/1999/024381
Kind Code:
A1
Abstract:
A method of efficiently removing the protective group from a protected hydroxyl or amino group with an allyl derivative by one-step reaction under neutral conditions. A protected hydroxyl or amino group is converted into a free hydroxyl or amino group in one step by adding a reducing agent to an allyl derivative in the presence of nickeldichlorobis(diphenylphosphino) propane.
Inventors:
OGASAWARA KUNIO (JP)
TANIGUCHI TAKAHIKO (JP)
TANIGUCHI TAKAHIKO (JP)
Application Number:
PCT/JP1998/005029
Publication Date:
May 20, 1999
Filing Date:
November 09, 1998
Export Citation:
Assignee:
CHISSO CORP (JP)
OGASAWARA KUNIO (JP)
TANIGUCHI TAKAHIKO (JP)
OGASAWARA KUNIO (JP)
TANIGUCHI TAKAHIKO (JP)
International Classes:
C07C29/132; C07C209/62; C07C231/12; C07C303/40; C07D233/58; C07C211/27; C07C211/46; C07C233/07; C07C233/11; C07C233/22; C07C311/16; C07C311/21; (IPC1-7): C07B51/00; B01J31/24; C07C29/132; C07C33/22; C07C35/12; C07C35/37; C07C41/26; C07C43/13; C07C43/178; C07C43/23; C07C209/62; C07C211/27; C07C211/45; C07C211/46; C07C211/48; C07C231/08; C07C233/05; C07C233/07; C07C233/65; C07C233/73; C07C233/75; C07C303/40; C07C311/15; C07D207/323; C07D209/08; C07D209/86; C07D217/04; C07D233/58; C07D493/04; C07J9/00
Foreign References:
| JPH08325167A | 1996-12-10 | |||
| JPH08508986A | 1996-09-24 | |||
| JPH0853412A | 1996-02-27 |
Other References:
See also references of EP 1044962A4
Attorney, Agent or Firm:
Funahashi, Eiko (Nishishinbashi 1-chome Minato-ku Tokyo, JP)
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