[EN] METHOD FOR PREPARING 2-AMINO-N-(2,2,2-TRIFLUOROETHYL) ACETAMIDE<br/>[FR] PROCÉDÉ DE PRÉPARATION DE 2-AMINO-N-(2,2,2-TRIFLUOROÉTHYL)ACÉTAMIDE
申请人:DU PONT
公开号:WO2012047543A1
公开(公告)日:2012-04-12
Disclosed are methods for preparing compounds of Formula 1 and 1A. The first method utilizes a benzyl carbamate amine protecting group and an intermediate of Formula 4. The second method utilizes a tert-butyl carbamate amine protecting group and an intermediate of Formula 7. The third method utilizes a dibenzyl amine protecting group. Also disclosed is a compound, phenylmethyl N-[2-oxo-2-[(2,2,2- trifluoroethyl)amino]ethyl]carbamate (a compound of Formula 4). Further disclosed is a method for preparing a compound of Formula 14 from a compound of Formula 15 and a compound of Formula 1 or 1A.
METHOD FOR PREPARING 5-HALOALKYL-4, 5-DIHYDROISOXAZOLE DERIVATIVES
申请人:Annis Gary David
公开号:US20120277442A1
公开(公告)日:2012-11-01
Disclosed is a method for preparing a compound of Formula 1
wherein
R
1
is CHX
2
, CX
3
, CX
2
CHX
2
or CX
2
CX
3
;
each X is independently Cl or F;
Z is optionally substituted phenyl; and
Q is phenyl or 1-naphthalenyl, each optionally substituted as defined in the disclosure; comprising contacting a compound of Formula 2
with hydroxylamine in the presence of a base.
The present invention also relates to novel compounds of Formula 2, useful as starting materials for the aforedescribed method.
METHOD FOR PREPARING 5-HALOALKYL-4,5-DIHYDROISOXAZOLE DERIVATIVES
申请人:Annis Gary David
公开号:US20100249424A1
公开(公告)日:2010-09-30
Disclosed is a method for preparing a compound of Formula 1
wherein
R
1
is CHX
2
, CX
3
, CX
2
CHX
2
or CX
2
CX
3
;
each X is independently Cl or F;
Z is optionally substituted phenyl; and
Q is phenyl or 1-naphthalenyl, each optionally substituted as defined in the disclosure;
comprising contacting a compound of Formula 2
with hydroxylamine in the presence of a base.
The present invention also relates to novel compounds of Formula 2, useful as starting materials for the aforedescribed method.
Method for preparing 5-haloalkyl-4,5-dihydroisoxazole derivatives
申请人:E.I. du Pont de Nemours and Company
公开号:US08217180B2
公开(公告)日:2012-07-10
Disclosed is a method for preparing a compound of Formula 1
wherein
R1 is CHX2, CX3, CX2CHX2 or CX2CX3;
each X is independently Cl or F;
Z is optionally substituted phenyl; and
Q is phenyl or 1-naphthalenyl, each optionally substituted as defined in the disclosure;
comprising contacting a compound of Formula 2
with hydroxylamine in the presence of a base.
The present invention also relates to novel compounds of Formula 2, useful as starting materials for the aforedescribed method.
METHOD FOR PREPARING 2-AMINO-N-(2,2,2-TRIFLUOROETHYL) ACETAMIDE
申请人:Bruening Joerg
公开号:US20130267729A1
公开(公告)日:2013-10-10
Disclosed are methods for preparing compounds of Formula 1 and 1A. The first method utilizes a benzyl carbamate amine protecting group and an intermediate of Formula 4. The second method utilizes a tert-butyl carbamate amine protecting group and an intermediate of Formula 7. The third method utilizes a dibenzyl amine protecting group. Also disclosed is a compound, phenylmethyl N-[2-oxo-2-[(2,2,2-trifluoroethyl)amino]ethyl]carbamate (a compound of Formula 4). Further disclosed is a method for preparing a compound of Formula 14 from a compound of Formula 15 and a compound of Formula 1 or 1A.