Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Tatjana Heckel"'
Autor:
Christian Weinberger, Tatjana Heckel, Patrick Schnippering, Markus Schmitz, Anpeng Guo, Waldemar Keil, Heinrich C. Marsmann, Claudia Schmidt, Michael Tiemann, René Wilhelm
Publikováno v:
Nanomaterials, Vol 9, Iss 2, p 249 (2019)
The combined benefits of moisture-stable phosphonic acids and mesoporous silica materials (SBA-15 and MCM-41) as large-surface-area solid supports offer new opportunities for several applications, such as catalysis or drug delivery. We present a comp
Externí odkaz:
https://doaj.org/article/d3aef39cee1c40349be6111838c12c4b
Publikováno v:
Catalysts, Vol 3, Iss 4, Pp 914-921 (2013)
Chitosan, which is derived from the biopolymer chitin, can be readily dissolved in different ionic liquids. The resulting homogeneous solutions were applied in an asymmetric Aldol reaction. Depending on the type of ionic liquid used, high asymmetric
Externí odkaz:
https://doaj.org/article/1638a11a81ee48a087a47956b0b815a9
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 8, Iss 1, Pp 1798-1803 (2012)
The application of imidazolinium and amidinium salts as soft Lewis acid organocatalysts is described. These salts were suitable catalysts for the activation of unsaturated thioesters in a Diels–Alder reaction and in the ring opening of thiiranes an
Externí odkaz:
https://doaj.org/article/74ff20e85ce74b2d9823e0d643b9e33f
Autor:
René Wilhelm, Heinrich Marsmann, Patrick Schnippering, Anpeng Guo, Claudia Schmidt, Christian Weinberger, Tatjana Heckel, Waldemar Keil, Michael Tiemann, Markus Schmitz
Publikováno v:
Nanomaterials
Volume 9
Issue 2
Nanomaterials, Vol 9, Iss 2, p 249 (2019)
Volume 9
Issue 2
Nanomaterials, Vol 9, Iss 2, p 249 (2019)
The combined benefits of moisture-stable phosphonic acids and mesoporous silica materials (SBA-15 and MCM-41) as large-surface-area solid supports offer new opportunities for several applications, such as catalysis or drug delivery. We present a comp
Publikováno v:
Tetrahedron: Asymmetry. 24:1127-1133
The synthesis of enantiopure ionic liquids based on (−)-nicotine is discussed. The desired compounds were prepared in good yields from (−)-nicotine via quaternization of the pyridine ring of (−)-nicotine with MeI and EtBr. After anion metathesi