1,3-dibromo-5,5-dimethylhydantoin (DBH) as an efficient promoter for acetylation of 3-arylsydnones in the presence of acetic anhydride under neutral conditions

被引:21
作者
Azarifar, Davood
Bosra, Hassan Ghasemnejad
Tajbaksh, Mahmood
机构
[1] Bu Ali Sina Univ, Sch Sci, Dept Chem, Hamadan, Iran
[2] Mazandaran Univ, Fac Sci, Dept Chem, Babol Sar, Iran
关键词
D O I
10.1002/jhet.5570440231
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
1,3-Dibromo-5,5-dimethylhydantoin (DBH) has been found to efficiently promote the conversion of various 3-arylsydnones to their 4-acetyl congeners in the presence of acetic anhydride under neutral conditions in satisfactory yields.
引用
收藏
页码:467 / 469
页数:3
相关论文
共 33 条
[1]  
ACKERMAN.E, 1967, PHARMAZIE, V22, P537
[2]   1,3-Dibromo-5,5-dimethylhydantoin as catalyst for the conversion of aldehydes to their 1,1-diacetates (acetylals) under solvent-free and neutral conditions [J].
Azarifar, D ;
Ghasemnejad, H ;
Ramzanian-Iehmali, F .
MENDELEEV COMMUNICATIONS, 2005, 15 (05) :209-210
[3]   Catalytic activity of 1,3-dibromo-5,5-dimethylhydantoin (DBH) in the one-pot transformation of N-arylglycines to N-arylsydnones in the presence of NaNO2/Ac2O under neutral conditions:: Subsequent bromination of these sydnones to their 4-bromo derivatives [J].
Azarifar, D ;
Ghasemnejad-Bosra, H .
SYNTHESIS-STUTTGART, 2006, (07) :1123-1126
[4]   Microwave-assisted synthesis of N-arylglycines:: Improvement of sydnone synthesis [J].
Azarifar, D ;
Bosra, HG ;
Zolfigol, MA ;
Tajbaksh, M .
HETEROCYCLES, 2006, 68 (01) :175-181
[5]   Silica-supported 1,3-dibromo-5,5-dimethylhydantoin (DBH) as a useful reagent for microwave-assisted aromatization of 1,3,5-trisubstituted pyrazolines under solvent-free conditions [J].
Azarifar, D ;
Zolfigol, MA ;
Maleki, B .
SYNTHESIS-STUTTGART, 2004, (11) :1744-1746
[6]  
Azarifar D, 2004, B KOREAN CHEM SOC, V25, P23
[7]  
BROOKS P, 1959, J CHEM SOC, P4409
[8]  
CORNELIS A, 1994, SYNLETT, P155
[9]   The action of acetic anhydride on N-nitrosophenylglycine and some of its derivatives. [J].
Earl, JC ;
Mackney, AW .
JOURNAL OF THE CHEMICAL SOCIETY, 1935, :899-900
[10]   ACYLATION OF 3-PHENYLSYDNONE WITH CARBOXYLIC ACIDS AND PHOSPHORUS PENTOXIDE [J].
GRECO, CV ;
TOBIAS, J ;
KIER, LB .
JOURNAL OF HETEROCYCLIC CHEMISTRY, 1967, 4 (01) :160-&