|
|
|
|
| LEADER |
01000naa a22002652 4500 |
| 001 |
NLM322862124 |
| 003 |
DE-627 |
| 005 |
20231225182936.0 |
| 007 |
cr uuu---uuuuu |
| 008 |
231225s2021 xx |||||o 00| ||eng c |
| 024 |
7 |
|
|a 10.1002/mrc.5152
|2 doi
|
| 028 |
5 |
2 |
|a pubmed24n1076.xml
|
| 035 |
|
|
|a (DE-627)NLM322862124
|
| 035 |
|
|
|a (NLM)33729592
|
| 040 |
|
|
|a DE-627
|b ger
|c DE-627
|e rakwb
|
| 041 |
|
|
|a eng
|
| 100 |
1 |
|
|a Rayner, Peter J
|e verfasserin
|4 aut
|
| 245 |
1 |
0 |
|a Steric and electronic effects on the 1 H hyperpolarisation of substituted pyridazines by signal amplification by reversible exchange
|
| 264 |
|
1 |
|c 2021
|
| 336 |
|
|
|a Text
|b txt
|2 rdacontent
|
| 337 |
|
|
|a ƒaComputermedien
|b c
|2 rdamedia
|
| 338 |
|
|
|a ƒa Online-Ressource
|b cr
|2 rdacarrier
|
| 500 |
|
|
|a Date Completed 17.11.2021
|
| 500 |
|
|
|a Date Revised 08.11.2023
|
| 500 |
|
|
|a published: Print-Electronic
|
| 500 |
|
|
|a Citation Status PubMed-not-MEDLINE
|
| 520 |
|
|
|a © 2021 The Authors. Magnetic Resonance in Chemistry published by John Wiley & Sons Ltd.
|
| 520 |
|
|
|a Utility of the pyridazine motif is growing in popularity as pharmaceutical and agrochemical agents. The detection and structural characterisation of such materials is therefore imperative for the successful development of new products. Signal amplification by reversible exchange (SABRE) offers a route to dramatically improve the sensitivity of magnetic resonance methods, and we apply it here to the rapid and cost-effective hyperpolarisation of substituted pyridazines. The 33 substrates investigated cover a range of steric and electronic properties and their capacity to perform highly effective SABRE is assessed. We find the method to be tolerant to a broad range of electron donating and withdrawing groups; however, good sensitivity is evident when steric bulk is added to the 3- and 6-positions of the pyridazine ring. We optimise the method by reference to a disubstituted ester that yields signal gains of >9000-fold at 9.4 T (>28% spin polarisation)
|
| 650 |
|
4 |
|a Journal Article
|
| 650 |
|
4 |
|a Research Support, Non-U.S. Gov't
|
| 650 |
|
4 |
|a NMR
|
| 650 |
|
4 |
|a SABRE
|
| 650 |
|
4 |
|a hyperpolarisation
|
| 650 |
|
4 |
|a parahydrogen
|
| 700 |
1 |
|
|a Burns, Michael J
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Fear, Elizabeth J
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Duckett, Simon B
|e verfasserin
|4 aut
|
| 773 |
0 |
8 |
|i Enthalten in
|t Magnetic resonance in chemistry : MRC
|d 1985
|g 59(2021), 12 vom: 15. Dez., Seite 1187-1198
|w (DE-627)NLM098179667
|x 1097-458X
|7 nnns
|
| 773 |
1 |
8 |
|g volume:59
|g year:2021
|g number:12
|g day:15
|g month:12
|g pages:1187-1198
|
| 856 |
4 |
0 |
|u http://dx.doi.org/10.1002/mrc.5152
|3 Volltext
|
| 912 |
|
|
|a GBV_USEFLAG_A
|
| 912 |
|
|
|a SYSFLAG_A
|
| 912 |
|
|
|a GBV_NLM
|
| 912 |
|
|
|a GBV_ILN_350
|
| 951 |
|
|
|a AR
|
| 952 |
|
|
|d 59
|j 2021
|e 12
|b 15
|c 12
|h 1187-1198
|