5325-94-0Relevant articles and documents
Regioselective Preparation of Iodinated Phloroglucinols
Schmidt, Boris,Hoffmann, H. Martin R.
, p. 1501 - 1506 (2007/10/02)
A range of mono- and diiodinated phloroglucinols with differential protection of two hydroxy groups has been prepared. Key Words: Resorcinols, methoxy-, monoprotected / Iodination, mild / Iodobenzenes, electron-rich
Novel Synthesis of Carbamic Ester from Carbon Dioxide, Amine, and Ortho Ester
Ishii, Shideru,Nakayama, Hidenobu,Yoshida, Yasuhiko,Yamashita, Tadataka
, p. 455 - 458 (2007/10/02)
Carbon dioxide reacted with aliphatic amines and ortho esters to form carbamic esters in good yields.The influence of different ortho esters on the carbamate synthetic reaction is described.In the case of orthocarbonates, carbamic esters were obtained in high yields.The reaction of carbon dioxide, amines, and ortho esters may involve a competitive reaction between the esterification of carbamic acid produced by a reaction of carbon dioxide with amine, and the alkylation of amine.
Mild Reductive Cleavage of α-Aminoethers
Lee, Dong Ung,Wiegrebe, Wolfgang
, p. 694 - 704 (2007/10/02)
1,2,3,4-Tetrahydro-6,7-dimethoxy-2-methylisoquinoline (1) is converted by ethyl chloroformate (ECF)/NaBH3CN to 2--4,5-dimethoxytoluene (4) via the quaternary urethane 2.The same procedure leads from laudanosine (5)
Alkenyl-copper derivatives. 28 (1) : Stereospecific synthesis of tertiary allylic amines of E and Z configuration
Germon, C.,Alexakis, A.,Normant, J. F.
, p. 377 - 389 (2007/10/02)
Aminoethers and aminothioethers react smoothly with organocopper and cuprate reagents to afford tertiary amines.The use of Z alkenyl cuprates or E alkenyl aluminium derivatives leads to Z or E tertiary allylic amines.Polysubstituted and variously functionalized alkenyl copper reagents react in the same way, and a straightforward synthesis of pure N,N-diethylnerylamine is described.The stereoisomeric purity of these allylic amines is in the 99.5-99.9percent range, and their conversion to the corresponding allylic chlorides is not accompanied by any stereochemical scrambling.