340187-12-4Relevant articles and documents
N-bromosuccinimide promoted synthesis of β-amino bromides under Appel reaction condition
Chinthaginjala, Srinivasulu,Alavandimat, Nanda H.,Umesha, Vathsala,Sureshbabu, Vommina V.
supporting information, p. 2975 - 2983 (2021/08/27)
An efficient and facile method has been developed for the synthesis of chiral β-amino bromides from their corresponding alcohols under Appel reaction conditions. This approach allows for the deoxybromination of a variety of β-amino alcohols in excellent y
Near infrared fluorescence probe with extremely acid pH response as well as preparation method and application thereof
-
Paragraph 0079; 0080, (2016/11/17)
The invention provides a near infrared fluorescence probe with extremely acid pH response. The chemical structural formula is shown by a formula (I), wherein X is -C(CH3)2-, -O-, -S- or -Se-; Z is -CH2-Ph or a group shown by -R'NH2; R' is C1-12 alkylene; R1 and R2 are separately selected from H atom, C1-18 alkyl or a group shown by -SO3R5; R5 is C1-18 alkyl or benzyl; R3 and R4 are separately selected from C1-18 alkyl or benzyl; and Y is F, Cl, Br or I. The near infrared fluorescence probe has the advantages of relatively low pKa value, relatively high sensitivity to H, high selectivity, relatively large stocks displacement, little background interference and relatively low harm to cells and living body and is very suitable for detecting pH in an extremely acid environment and overcomes the defects of the fluorescence probes of the prior art. The invention also provides a preparation method and an application of the probe.