Results 81 to 90 of about 4,042 (165)

Efficacious N-protection of O-aryl sulfamates with 2,4-dimethoxybenzyl groups

open access: yes, 2012
Sulfamates are important functional groups in certain areas of current medicinal chemistry and drug development. Alcohols and phenols are generally converted into the corresponding primary sulfamates (ROSO2NH2 and ArOSO2NH2, respectively) by reaction ...
Annalisa Bertoli (16199546)   +4 more
core  

Betulinyl Sulfamates as Anticancer Agents and Radiosensitizers in Human Breast Cancer Cells

open access: yes, 2015
Betulinic acid (BA), a natural compound of birch bark, is cytotoxic for many tumors. Recently, a betulinyl sulfamate was described that inhibits carbonic anhydrases (CA), such as CAIX, an attractive target for tumor-selective therapy strategies in ...
Daniel Emmerich   +7 more
core   +1 more source

A Study of Aldehyde Derivatives of Metallic Sulfamates [PDF]

open access: yes, 1949
Sulfamic acid at one time had no particular value, and very little was known about the physical and chemical properties of this acid. At the present time , however, this acid is a commercial product of considerable importance and extensive investigation ...
Morin, Edmond A.
core   +1 more source

Palladium- and Nickel-Catalyzed Aminations of Aryl Imidazolylsulfonates and Sulfamates

open access: yes, 2011
A nickel complex derived from dppf, along with NaOt-Bu as the base, allowed for challenging aminations of aryl sulfamates. An improved functional group tolerance is observed in novel palladium-catalyzed aminations of imidazolylsulfonates with rac-BINAP ...
Song, Weifeng   +5 more
core   +1 more source

Rapid Nickel-Catalyzed Suzuki−Miyaura Cross-Couplings of Aryl Carbamates and Sulfamates Utilizing Microwave Heating

open access: yes, 2016
High-speed and scalable nickel-catalyzed cross-coupling of arylboronic acids with aryl carbamates and sulfamates is achieved by using sealed-vessel microwave ...
Christian Pilger (2162587)   +2 more
core   +1 more source

Ring Opening of Aziridines by Pendant Sulfamates Allows for Regioselective and Stereospecific Preparation of Vicinal Diamines

open access: yes
The ring opening of aziridines by pendant sulfamates is a viable strategy for the rapid preparation of vicinal diamines. Our reaction is compatible with both disubstituted cis- and trans-aziridines; unsubstituted, N-alkyl, and N-aryl sulfamates engage ...
Someshwar Nagamalla (11965760)   +4 more
core   +1 more source

Palladium-Catalyzed Intramolecular Diamination of Acrylic Esters Using Sulfamates as Nitrogen Source

open access: yes, 2016
An intramolecular diamination of acrylates is reported using sulfamates as nitrogen sources. This reaction proceeds under palladium­(II) catalysis with copper bromide as oxidant and gives rise to anti-configured 2,3-diamino carboxylates as bicyclic ...
Kilian Muñiz (1393558)   +3 more
core   +2 more sources

Stereochemical Models for Rh-Catalyzed Amination Reactions of Chiral Sulfamates

open access: yes, 2016
Oxidative C−H amination of chiral sulfamate esters using achiral Rh-carboxylate catalysts, PhI(OAc)2, and MgO occurs in high yield and with good to excellent diastereocontrol. A number of examples are included to support a proposed transition state model
Jihee Lee (2432605)   +2 more
core   +1 more source

N‑Heterocyclic Carbene-Assisted, Bis(phosphine)nickel-Catalyzed Cross-Couplings of Diarylborinic Acids with Aryl Chlorides, Tosylates, and Sulfamates

open access: yes, 2016
Efficient bis­(phosphine)­nickel-catalyzed cross-couplings of diarylborinic acids with aryl chlorides, tosylates, and sulfamates have been effected with an assistance of N-heterocyclic carbene (NHC) generated in situ from N,N′-dialkylimidazoliums, e.g ...
Haihua Ke (1771690)   +2 more
core   +1 more source

Carbonic anhydrase inhibitors: Inhibition of transmembrane, tumor-associated isozyme IX, and cytosolic Isozymes I and II with aliphatic sulfamates

open access: yes, 2003
A series of aliphatic sulfamates and related derivatives incorporating cyclic/polycyclic (steroidal) moieties in their molecules has been synthesized and assayed as inhibitors of the zinc enzyme carbonic anhydrase (CA) and, more precisely, of the ...
Vullo, Daniela   +10 more
core   +1 more source

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