Global Patent Index - EP 1056753 A1

EP 1056753 A1 2000-12-06 - USEFUL METHOD FOR TRIFLIC ACID SILYLATION

Title (en)

USEFUL METHOD FOR TRIFLIC ACID SILYLATION

Title (de)

VERFAHREN ZUR SILYLIERUNG VON TRIFLUORMETHANSULFONSÄURE

Title (fr)

PROCEDE UTILE POUR LA SILYLATION DE L'ACIDE TRIFLIQUE

Publication

EP 1056753 A1 (FR)

Application

EP 99904945 A

Priority

  • FR 9900415 W
  • FR 9802437 A

Abstract (en)

[origin: FR2775478A1] The invention concerns a silylation method for a compound of general formula (I): Rf S(O)mOH in which Rf represents a radical of formula: -(CX2)p-GEA in which the symbols X, identical or different, represent a fluorine atom or a radical of formula CnF2n+1 with n being an integer not more than 5 preferably not more than 2; p represents an integer not more than 2; and the symbol GEA represents an electroattractive group, characterised in that the silylation agent is a derivative Si(R)4 with R representing a C1-C6 saturated alkyl and said silylation agent reacts with the compound of general formula (I) in the presence of at least a compound of general formula (II): Si(R)2(H)(Y) with R as defined above and Y representing a halogen atom.

IPC 1-7 (main, further and additional classification)

C07F 7/08

IPC 8 full level (invention and additional information)

C07F 7/08 (2006.01)

CPC (invention and additional information)

C07F 7/0836 (2013.01); C07F 7/0834 (2013.01)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

FR 2775478 A1 19990903; FR 2775478 B1 20000519; AU 2526599 A 19990915; CN 1291985 A 20010418; EP 1056753 A1 20001206; JP 2002504557 A 20020212; WO 9943687 A1 19990902; ZA 9901521 B 20000825

INPADOC legal status


2001-11-07 [18W] WITHDRAWN

- Date of withdrawal: 20010831

2001-07-25 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010612

2000-12-06 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000705

2000-12-06 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE