5100-01-6Relevant academic research and scientific papers
[2+2] Cycloaddition reactions of 1-benzyl-2,4-diphenyl-1,3-diazabuta-1,3-diene with chiral ketenes
Abbiati, Giorgio,Rossi, Elisabetta
, p. 7205 - 7212 (2001)
The [2+2] cycloaddition reactions of 1-benzyl-2,4-diphenyl-1,3-diaza-1,3-butadiene with β-(dimethylphenylsilyl)ketene, β-menthoxyketene and Evans-Sjo?gren ketene were investigated. The results and some chemical transformations of the obtained cycloadducts
A solid-supported arylboronic acid catalyst for direct amidation
Du, Yihao,Barber, Thomas,Lim, Sol Ee,Rzepa, Henry S.,Baxendale, Ian R.,Whiting, Andrew
supporting information, p. 2916 - 2919 (2019/03/27)
An efficient heterogeneous amidation catalyst has been prepared by co-polymerisation of styrene, DVB with 4-styreneboronic acid, which shows wide substrate applicability and higher reactivity than the equivalent homogeneous phenylboronic acid, suggesting potential cooperative catalytic effects. The catalyst can be easily recovered and reused; suitable for use in packed bed flow reactors.
Practical, highly enantioselective chemoenzymatic one-pot synthesis of short-chain aliphatic β-amino acid esters
Wei?, Markus,Gr?ger, Harald
experimental part, p. 1251 - 1254 (2009/09/06)
A practical, highly enantioselective method for the synthesis of short-chain aliphatic β-amino acid esters was developed starting from prochiral and easily accessible substrates. This chemoenzymatic approach is based on a nonenzymatic aza-Michael addition
