803706-21-0Relevant articles and documents
Synthesis and evaluation of guanidinyl pyrrolidines as bifunctional catalysts for enantioselective conjugate additions to cyclic enones
Pansare, Sunil V.,Lingampally, Rajinikanth
, p. 319 - 324 (2009)
Guanidinyl pyrrolidines derived from 'S'-proline are effective catalysts for the enantioselective conjugate addition of malonate, nitroalkane and other carbon and heteroatom nucleophiles to cyclohexenone and cyclopentenone in the absence of basic additive
Optimization of the catalytic asymmetric addition of nitroalkanes to cyclic enones with trans-4,5-methano-L-proline
Hanessian, Stephen,Shao, Zhihui,Warrier, Jayakumar S.
, p. 4787 - 4790 (2007/10/03)
(Chemical Equation Presented) The conjugate addition of symmetrical 2-nitroalkanes to 2-cycloalkenones catalyzed by trans-4,5-methano-L-proline proceeds with >99% ee and excellent chemical yields. 1-Nitroalkanes afford diastereomeric syn/anti products tha
4-trans-Amino-proline based di- and tetrapeptides as organic catalysts for asymmetric C-C bond formation reactions
Tsogoeva, Svetlana B.,Jagtap, Sunil B.,Ardemasova, Zoya A.
, p. 989 - 992 (2007/10/03)
4-trans-Amino-proline based di- and tetrapeptides have been successfully applied as chiral organocatalysts in the enantioselective conjugate addition of nitroalkanes to cyclic enones and the direct aldol reaction. Two 4-trans-amino-proline residues were s
Trends in asymmetric Michael reactions catalysed by tripeptides in combination with an achiral additive in different solvents
Tsogoeva, Svetlana B.,Jagtap, Sunil B.,Ardemasova, Zoya A.,Kalikhevich, Victor N.
, p. 4014 - 4019 (2007/10/03)
The potential of tripeptides 3, 6 and 12 as chiral catalysts for asymmetric Michael addition reactions in the presence of an achiral additive has been tested in different solvents (CHCI3, acetone, DMF, DMSO and the room-temperature ionic liquid
Catalytic asymmetric conjugate addition of nitroalkanes to cycloalkenones
Hanessian, Stephen,Pham, Vinh
, p. 2975 - 2978 (2007/10/03)
Nitroalkanes add to cyclic and acyclic enones in an enantioselective manner in the presence of catalytic quantities of L-proline and trans2,5-dimethylpiperazine as excess additive.