Electrochemical sulfonylation of enamides with sodium sulfinates to access β-amidovinyl sulfones

2021 ◽  
Vol 19 (38) ◽  
pp. 8295-8300
Author(s):  
Qingyun Gu ◽  
Xin Wang ◽  
Xinyi Liu ◽  
Guixia Wu ◽  
Yushan Xie ◽  
...  
Keyword(s):  
Undivided Cell ◽  
Redox Reagent

The electrochemical sulfonylation of enamides with sodium sulfinates in an undivided cell under catalyst- and exogenous redox reagent-free conditions was developed to access a variety of β-amidovinyl sulfones.

Evolution of the diverse biological roles of inositols

2007 ◽  
Vol 74 ◽  
pp. 223-246 ◽  
Author(s):  
Robert H. Michell
Keyword(s):  
Membrane Trafficking ◽  
Cell Signalling ◽  
Compatible Solutes ◽  
Mirror Image ◽  
Membrane Phospholipids ◽  
Functional Diversification ◽  
Redox Reagent ◽  
Ca2 Channels ◽  
Mycobacterium Spp

Several of the nine hexahydroxycylohexanes (inositols) have functions in Biology, with myo-inositol (Ins) in most of the starring roles; and Ins polyphosphates are amongst the most abundant organic phosphate constituents on Earth. Many Archaea make Ins and use it as a component of diphytanyl membrane phospholipids and the thermoprotective solute di-L-Ins-1,1′-phosphate. Few bacteria make Ins or use it, other than as a carbon source. Those that do include hyperthermophilic Thermotogales (which also employ di-l-Ins-1,1′-phosphate) and actinomycetes such as Mycobacterium spp. (which use mycothiol, an inositol-containing thiol, as an intracellular redox reagent and have characteristic phosphatidylinositol-linked surface oligosaccharides). Bacteria acquired their Ins3P synthases by lateral gene transfer from Archaea. Many eukaryotes, including stressed plants, insects, deep-sea animals and kidney tubule cells, adapt to environmental variation by making or accumulating diverse inositol derivatives as ‘compatible’ solutes. Eukaryotes use phosphatidylinositol derivatives for numerous roles in cell signalling and regulation and in protein anchoring at the cell surface. Remarkably, the diradylglycerol cores of archaeal and eukaryote/bacterial glycerophospholipids have mirror image configurations: sn-2,3 and sn-1,2 respectively. Multicellular animals and amoebozoans exhibit the greatest variety of functions for PtdIns derivatives, including the use of PtdIns(3,4,5)P3 as a signal. Evolutionarily, it seems likely that (i) early archaeons first made myo-inositol approx. 3500 Ma (million years) ago; (ii) archeons brought inositol derivatives into early eukaryotes (approx. 2000 Ma?); (iii) soon thereafter, eukaryotes established ubiquitous functions for phosphoinositides in membrane trafficking and Ins polyphosphate synthesis; and (iv) since approx. 1000 Ma, further waves of functional diversification in amoebozoans and metazoans have introduced Ins(1,4,5)P3 receptor Ca2+ channels and the messenger role of PtdIns(3,4,5)P3.

A study of glyoxylic acid synthesis in an undivided cell

1990 ◽  
Vol 35 (3) ◽  
pp. 621-623 ◽  
Author(s):  
K. Scott ◽  
A.P. Colbourne ◽  
S.D. Perry
Keyword(s):  
Glyoxylic Acid ◽  
Acid Synthesis ◽  
Undivided Cell

Hydrodimerization of Dimethyl Maleate in Methanol Using an Undivided Cell

1993 ◽  
Vol 140 (9) ◽  
pp. 2565-2567 ◽  
Author(s):  
E. A. Casanova ◽  
M. C. Dutton ◽  
D. J. Kalota ◽  
J. H. Wagenknecht
Keyword(s):  
Undivided Cell ◽  
Dimethyl Maleate

Diethyl Phosphite Promoted Electrochemical Oxidation of Tetrahydroisoquinolines to 3,4-Dihydroisoquinolin-1(2H)-ones

Synlett ◽  
2019 ◽  
Vol 30 (18) ◽  
pp. 2077-2080
Author(s):  
Wenxia Xie ◽  
Bowen Gong ◽  
Shulin Ning ◽  
Nian Liu ◽  
Zhuoqi Zhang ◽  
...  
Keyword(s):  
Electrochemical Oxidation ◽  
Environmentally Friendly ◽  
Diethyl Phosphite ◽  
Mild Conditions ◽  
Undivided Cell ◽  
Mediated Electrochemical Oxidation

A diethyl phosphite mediated electrochemical oxidation strategy for the synthesis of 3,4-dihydroisoquinolin-1(2H)-ones from tetrahydroisoquinolines under mild conditions has been developed. This protocol provides an environmentally friendly and simple way for the construction of C=O bonds in an undivided cell unit.

NO binds to unsaturated Os(IV) polyhydrides as a redox reagent

2007 ◽  
Vol 692 (15) ◽  
pp. 3121-3132 ◽  
Author(s):  
Joo-Ho Lee ◽  
Andrei N. Vedernikov ◽  
David Dye ◽  
Kenneth G. Caulton
Keyword(s):  
Redox Reagent

ChemInform Abstract: A Facile Electroreductive Hydrocoupling of Imines in an Undivided Cell.

ChemInform ◽  
1990 ◽  
Vol 21 (15) ◽  
Author(s):  
H. TANAKA ◽  
T. NAKAHARA ◽  
H. DHIMANE ◽  
S. TORII
Keyword(s):  
Undivided Cell

Electrolysis of simulated flue gas solutions in an undivided cell

1997 ◽  
Vol 70 (1) ◽  
pp. 51-56 ◽  
Author(s):  
K. Scott ◽  
W. M. Taama
Keyword(s):  
Flue Gas ◽  
Undivided Cell

Karmoazin as a single redox reagent for spectrophotometric determination of Mn, Cr, Se, and V in different categories of water

2015 ◽  
Vol 37 (4) ◽  
pp. 172-178 ◽  
Author(s):  
A. N. Chebotarev ◽  
E. V. Raboshvil ◽  
D. V. Snigur ◽  
A. A. Polishchuk
Keyword(s):  
Spectrophotometric Determination ◽  
Different Categories Of Water ◽  
Redox Reagent

Electrochemical regeneration of ceric sulphate in an undivided cell

1993 ◽  
Vol 23 (12) ◽  
Author(s):  
J. Been ◽  
C.W. Oloman
Keyword(s):  
Electrochemical Regeneration ◽  
Undivided Cell ◽  
Ceric Sulphate
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