Synthesis of DIBAC analogues with excellent SPAAC rate constants
作者:Marjoke F. Debets、Jasper S. Prins、Donny Merkx、Sander S. van Berkel、Floris L. van Delft、Jan C. M. van Hest、Floris P. J. T. Rutjes
DOI:10.1039/c4ob00694a
日期:——
Four new DIBAC analogues showed excellent SPAAC rate constants making them comparable to the fastest cyclooctynes currently known.
四种新的DIBAC类似物显示出优秀的SPAAC速率常数,使它们与目前已知最快的环辛烯相媲美。
Syngas Instead of Hydrogen Gas as a Reducing Agent─A Strategy To Improve the Selectivity and Efficiency of Organometallic Catalysts
作者:Evgeniya Podyacheva、Oleg I. Afanasyev、Vladimir S. Ostrovskii、Denis Chusov
DOI:10.1021/acscatal.2c01000
日期:2022.5.6
Catalytic reduction reactions play a major role in modern chemistry and are often based on hydrogen gas as a reducingagent. However, the high reactivity of hydrogen is often accompanied by low selectivity on the simple catalysts. Herein, we showed that the usage of syngas as a reducingagent can be a more efficient and selective strategy. Based on control experiments, a plausible mechanism was proposed
DERIVATIZABLE MONOMERS AND POLYMERS, AND METHODS FOR MAKING AND USING SAME
申请人:Rutgers, The State University of New Jersey
公开号:US20210388138A1
公开(公告)日:2021-12-16
The invention provides UV-sensitive monomers, comprising a cyclopropenone-containing group, which acts as a masked dibenzocyclooctyne (DBCO)/dibenzoazocyclooctyne (DIBAC) group. The monomers of the invention can be polymerized for example via reversible addition fragmentation chain transfer (RAFT) polymerization techniques to yield a polymer comprising the masked DBCO/DIBAC group. In certain embodiments, the DBCO/DIBAC group can be unmasked under controlled conditions, allowing conjugation of small molecules and/or macromolecules to the polymer through highly selective and efficient strain-promoted azide alkyne click chemistry (SPAAC).
[EN] HYDROPHILIC AZADIBENZOCYCLOOCTYNE DERIVATIVES AND METAL-FREE CLICK REACTIONS WITH THESE HYDROPHILIC AZADIBENZOCYCLOOCTYNE DERIVATIVES<br/>[FR] DÉRIVÉS D'AZADIBENZOCYCLOOCTYNE HYDROPHILES ET RÉACTIONS PAR CHIMIE-CLICK EXEMPTES DE MÉTAL AVEC CES DÉRIVÉS D'AZADIBENZOCYCLOOCTYNE HYDROPHILES
申请人:[en]F. HOFFMANN-LA ROCHE AG
公开号:WO2023083895A1
公开(公告)日:2023-05-19
The invention relates in a first aspect to an azadibenzocyclooctyne derivative according to formula (I) or a salt thereof having specific substituents at the benzo rings of the DIBAC structure and having specific substituents connected to the nitrogen atom of the DIBAC structure. A second aspect of the invention is directed to a conjugate of formula (II), wherein a substituent R6is connected to the N atom of the 8 membered ring of the DIBAC structure via a linker structure –C(=O)-[L]n-Z-. A third aspect of the invention relates to a method for the modification of a target molecule, wherein a conjugate according to the second aspect is reacted with a target molecule comprising a 1,3-dipole group or a 1,3-(hetero)diene group. In a fourth aspect, the invention is directed to the use of the conjugate according to the second aspect for bioorthogonal labeling and/or modification of a target molecule. A fifth aspect of the invention relates to a modified target molecule comprising the reaction product of a conjugate according to the second aspect and a target molecule comprising a 1,3-dipole group or a 1,3-(hetero)diene group, obtained or obtainable from the method of the third aspect. In a sixth aspect, the invention is related to a kit comprising a modified target molecule according to the fifth aspect as detector reagent and a suitable capture reagent.
A Dual Wavelength Polymerization and Bioconjugation Strategy for High Throughput Synthesis of Multivalent Ligands
作者:Zihao Li、Shashank Kosuri、Henry Foster、Jarrod Cohen、Coline Jumeaux、Molly M. Stevens、Robert Chapman、Adam J. Gormley
DOI:10.1021/jacs.9b09899
日期:2019.12.18
side chain of linear polymers or the α-chain end of star polymers. Polymerizations are performed under visible light using an oxygen tolerant porphyrin-catalyzed photoinduced electron/energy transfer-reversible addition-fragmentation chain-transfer (PET-RAFT) process, after which the deprotection and click reaction is triggered by UV light. Using this approach, we are able to precisely control the valency