Unraveling the Role of Alkyl F on CH−π Interactions and Uncovering the Tipping Point for Fluorophobicity
摘要:
Although fluorine often plays an influential role in molecular recognition, little is known about the effect of aliphatic fluorine on the CH-pi interaction in solution. A series of molecular balances were synthesized that contain fluorinated and nonfluorinated alkyl groups. Our findings indicate that fluorine's polarizing ability does enhance CH-7r binding and depends on molecular orientation. Surprisingly, when the terminal end of the alkyl group is completely fluorinated, the balance tips toward fluorophobicity and assumes an unusual constrained conformation.
Unraveling the Role of Alkyl F on CH−π Interactions and Uncovering the Tipping Point for Fluorophobicity
摘要:
Although fluorine often plays an influential role in molecular recognition, little is known about the effect of aliphatic fluorine on the CH-pi interaction in solution. A series of molecular balances were synthesized that contain fluorinated and nonfluorinated alkyl groups. Our findings indicate that fluorine's polarizing ability does enhance CH-7r binding and depends on molecular orientation. Surprisingly, when the terminal end of the alkyl group is completely fluorinated, the balance tips toward fluorophobicity and assumes an unusual constrained conformation.
A highly efficient TMSCl-mediated addition of N-nucleophiles to isocyanides has been achieved.
一种高效的TMSCl介导的N-亲核试剂加成到异氰酸酯的方法已经实现。
Improved synthesis of symmetrical and unsymmetrical 5,11-methanodibenzo[b,f][1,5]diazocines. Readily available nanoscale structural units
作者:Thomas H. Webb、Craig S. Wilcox
DOI:10.1021/jo00288a067
日期:1990.1
XALDEEVA V. A.; KONSHIN M. E., REDKOLLEGIYA ZH. ZHZV. VYSSH. UCHEB. ZAVEDENIJ . XIMIYA I XIM. TEXNOL. ZH+
作者:XALDEEVA V. A.、 KONSHIN M. E.
DOI:——
日期:——
Unraveling the Role of Alkyl F on CH−π Interactions and Uncovering the Tipping Point for Fluorophobicity
作者:Mark R. Ams、Michael Fields、Timothy Grabnic、Benjamin G. Janesko、Matthias Zeller、Rose Sheridan、Amanda Shay
DOI:10.1021/acs.joc.5b01072
日期:2015.8.7
Although fluorine often plays an influential role in molecular recognition, little is known about the effect of aliphatic fluorine on the CH-pi interaction in solution. A series of molecular balances were synthesized that contain fluorinated and nonfluorinated alkyl groups. Our findings indicate that fluorine's polarizing ability does enhance CH-7r binding and depends on molecular orientation. Surprisingly, when the terminal end of the alkyl group is completely fluorinated, the balance tips toward fluorophobicity and assumes an unusual constrained conformation.