110716-95-5Relevant articles and documents
Expanding the scope of donor/acceptor carbenes to N -phthalimido donor groups: Diastereoselective synthesis of 1-cyclopropane α-amino acids
Alford, Joshua S.,Davies, Huw M. L.
, p. 6020 - 6023 (2013/02/23)
Warming of 4-phthalimido-N-mesyl-1,2,3-triazole in the presence of alkenes followed by silica gel induced hydrolysis results in a highly diastereoselective and catalyst-free entry to N-phthalimidocyclopropanecarboxaldehydes.
PEPTIDYL NITRILES AND USE THEREOF AS DIPEPTIDYL PEPTIDASE I INHIBITORS
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Page/Page column 62-63, (2009/07/17)
The present invention provides compounds of formula (I) in which n, y, X1, X2, A, B, R1, R2, R3, R4 and R5 are as defined in the specification, a process for their preparation, pharmaceutical compositions containing them and their use as dipeptidyl peptidase I (DPPI) inhibitors.
Application of chiral sulfides to catalytic asymmetric aziridination and cyclopropanation with in situ generation of the diazo compound
Aggarwal, Varinder K.,Alonso, Emma,Fang, Guangyu,Ferrara, Marco,Hynd, George,Porcelloni, Marina
, p. 1433 - 1436 (2007/10/03)
Imines and alkenes can be converted into the corresponding aziridines and cyclopropanes (see scheme, PTC = phase-transfer catalyst, Ts = toluene-4-sulfonyl) in good yield with moderate to high d.r. and high ee values using tosylhydrazone salts with catalytic quantities of chiral sulfide (5-20 mol%) and metal catalyst (1 mol%). The process is particularly suited to the synthesis of conformationally locked cyclopropyl amino acids, which can now be prepared in only three steps from commercially available material in 100% ee.