Rh(I) and Ir(I) catalysed intermolecular hydroamination with substituted hydrazines.
نویسندگان
چکیده
The catalysed intermolecular hydroamination of a series of terminal alkynes with substituted hydrazines was achieved using Rh(I) and Ir(I) complexes.
منابع مشابه
Intermolecular Cope-type hydroamination of alkynes using hydrazines.
Metal-free, intermolecular hydroaminations are performed upon heating aryl acetylenes and MeNHNH(2) at 140 degrees C, with preferential formation of the linear, "anti-Markovnikov" hydrazones.
متن کاملWeakly coordinating counter-ions for highly efficient catalysis of intramolecular hydroamination.
A series of cationic rhodium(I) and iridium(I) complexes of the type [M(L[symbol: see text]L)(C2)]BAr(F)24 (where M = Rh or Ir, L[symbol: see text]L = bis(pyrazol-1-yl)methane (bpm), bis(N-methylimidazol-2-yl)methane (bim) or 1-(2-(diphenylphosphino)ethyl)-3,5-diphenylpyrazole (Ph2PyP), C2 = 1,5-cyclooctadiene (COD) or (CO)2 and BAr(F)24 = tetrakis[3,5-bis(trifluoromethyl)phenyl]borate) were sy...
متن کاملSynthesis of 1,3,5-trisubstituted pyrazolines via Zn(II)-catalyzed double hydroamination of enynes with aryl hydrazines.
An efficient Zn(II)-catalyzed intermolecular double hydroamination of 1,3-enynes with aryl hydrazines, for the synthesis of pyrazolines, has been discussed.
متن کاملGold(I)-catalysed synthesis of cyclic sulfamidates by intramolecular allene hydroamination.
Six-membered cyclic sulfamidates are prepared in high yields by treatment of allenic sulfamates with readily available gold(I) complexes. The reaction enables formation of N-substituted quaternary centres and complements existing processes for sulfamidate formation.
متن کاملGold-catalyzed intermolecular hydroamination of allenes with sulfonamides
A co-catalyst of (PPh3)AuCl/AgOTf for the intermolecular hydroamination of allenes with sulfonamides is shown. The reaction proceeded smoothly under mild conditions for differently substituted allenes giving N-allylic sulfonamides in good yields with high regioselectivity and E-selectivity.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Dalton transactions
دوره 45 شماره
صفحات -
تاریخ انتشار 2008