-
chemistry a
carbenoid is a
reactive intermediate that
shares reaction characteristics with a carbene. In the Simmons–Smith
reaction the
carbenoid intermediate...
- Simmons–Smith
reaction is an
organic cheletropic reaction involving an
organozinc carbenoid that
reacts with an
alkene (or alkyne) to form a cyclopropane. It is named...
-
proposals generally invoke organozinc intermediates,
sometimes including zinc
carbenoids,
either as
discrete species or as
organic fragments bound to the zinc...
- more accessible. Ring
contractions proceed via anionic, cationic, and
carbenoid intermediates. In the Arndt–Eistert reaction, an α-diazoketone is induced...
-
cyclopropane ring from a
metal carbenoid species and an alkene. In the Simmons–Smith
reaction the
metal involved is zinc.
Metal carbenoid species can be generated...
- 1968 Ryōji
Noyori developed a copper-Schiff base
complex for the metal-
carbenoid cyclopropanation of styrene.
Schiff bases have also been incorporated...
-
warming and to
carbenoids by
treatment with a Rh(II) or Cu(II) salt such as Rh2(OAc)4 or CuCl2. The transition-metal-derived
carbenoids,
which have a metal ––...
- reactions, this
began with the very
first application of BOX
ligands in
carbenoid cyclopropanations and has been
expanded to
include 1,3-Dipolar cycloaddition...
- aziridines.
Several cycloadditions wherein the
ylide serves as a "nucleophilic
carbenoid equivalent" have been reported.
Living polymerizations using trialkylboranes...
- used in a
stabilised form,
referred to as a
carbenoid. In the Simmons–Smith
reaction the
reactive carbenoid is
iodomethylzinc iodide,
which is typically...
