Title:
NOVEL CLASS COMPOUND
Document Type and Number:
Japanese Patent JPS63280076
Kind Code:
A
Abstract:
A class of novel chemical compounds comprising derivatives of 2,2,5,7,8-pentamethylchroman-6-sulphonyl and having the structural formula wherein X is selected from halogen and other groups having acidic functionality. We prefer that the X-group be chlorine. The said compounds are made by the sulphonation of 2,2,5,7,8-pentamethylchroman, preferably using chlorosulphonic acid. The primary utility of the compounds of the present invention is in the protection of functional groups in organic synthesis and more particularly in the protection of basic functional amino groups, such as amidines and guanidines. The invention also provides a method of making the protecting group and a protected amino acid.
Inventors:
ROBAATO RAMATSUJI
Application Number:
JP10444288A
Publication Date:
November 17, 1988
Filing Date:
April 28, 1988
Export Citation:
Assignee:
UENDOSUTOON CHEM PLC
International Classes:
C07B51/00; C07C227/00; C07C229/00; C07D311/70; C07K1/06; C07K1/113; (IPC1-7): C07D311/70; C07K1/06
Attorney, Agent or Firm:
Hajime Tsukuni (2 outside)
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