Results 71 to 80 of about 67,326 (131)

Makrozyklen mit 2,6-überbrückten Pyridinringen

open access: yes, 1968
Cyclisation of 1,2-di-(6,-chloromethyl-2\u27-pyridyl)-ethane by means of sodium and tetraphenylethylene in tetrahydrofurane led to 2,6-bridged pyridinophanes, The macrocyclic [2.2.2.2] (2,6)pyridinophane and [2.2.2.2.2.2] (2,6)pyridinophane were isolated
Holzrichter, H.   +3 more
core   +1 more source

N-heterocyclic carbene gold hydroxide complexes as bond activation reagents

open access: yes, 2015
Although known since the 1930s, organogold chemistry has been dormant until recently, primarily due to preconceptions about the inertness of gold in transformations.
Dupuy, Stéphanie
core  

Regioselective synthesis of 1-(2,6-dichloro-4-trifluoromethylphenyl)-4-alkyl-1H-[1,2,3]-triazoles

open access: yes, 2008
A new and efficient method for the synthesis of 1-(2,6-dichloro-4-trifluoromethylphenyl)-4- alkyl- 1H-[ 1,2,3]- triazoles by the room temperature 1,3-dipolar cycloaddition of (2-azido-1,3-dichloro-5-trifluoromethyl) benzene with terminal alkynes in the ...
Hu HN   +4 more
core  

Chemical screening approach using single leaves identifies compounds that affect cold signaling in Arabidopsis. [PDF]

open access: yesPlant Physiol, 2023
Kitawaki K   +6 more
europepmc   +1 more source

2,6-二叔丁基萘制备2,6-萘二羧酸的方法

open access: yes, 2009
一种2,6-二叔丁基萘制备2,6-萘二羧酸的方法,其步骤为:a)以一元羧酸为溶剂,再加入包含钴、锰和溴的化合物,搅拌至完全溶解即制得氧化催化剂。该氧化催化剂中,溴原子与溶剂的质量比为1∶1000-1∶50,并满足钴、锰和溴三者的原子比为:Co+Mn∶Br=1∶1-5,Co∶Mn=1∶1-5;b)将2,6- 二叔丁基萘加入至步骤a得到的氧化催化剂中,2,6-二叔丁基萘与溴原子比为1∶1-50∶1,于160-250℃,0.8-4.0MPa压力下,注入过氧化氢溶液,2,6- 二叔丁基萘∶过氧化氢=1∶5 ...
刘中民, 张新志, 王莹利, 许 磊
core  

Phenolic signals for prehaustorium formation in Striga hermonthica. [PDF]

open access: yesFront Plant Sci, 2022
Aoki N   +6 more
europepmc   +1 more source

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