Facile Synthesis of (C ₆ F ₅ ) ₂ BBr and (C ₆ F ₅ ) ₂ BX(OEt ₂ ) (X=Cl, Br) using Hydrogen Halides and Piers’ Borane

synthesis of amido alkylnaphthols using nano-magnetic particles and surfactants

we used dbsa and nano-magnetic for the synthesis of amido alkylnaphtols.

A theoretical survey on strength and characteristics of F•••F, Br•••O and Br•••Br interactions in solid phase

A quantum chemical investigation was carried out to study the properties of intermolecular F•••F, Br•••Br and Br•••O interactions in crystalline 1-bromo-2,3,5,6-tetrafluoro-nitrobenzene (BFNB). This system was selected to mimic the halogen-halogen as well as halogen bonding interactions found within crystal structures as well as within biological systems. We found that fluorine atoms have weak ...

T C C F     

We review links between three logic formalisms and three approaches to specifying operational semantics. In particular, we show that specifications written with (small-step and big-step) SOS, abstract machines, and multiset rewriting, are closely related to Horn clauses, binary clauses, and (a subset of) linear logic, respectively. We shall illustrate how binary clauses form a bridge between th...

C . F . S . and

Efficient synthesis of the C(7)-C(20) subunit of amphidinolides C and F.

Synthesis of the C(7)-C(20) subunit of amphidinolides C and F has been accomplished utilizing a Me(3)Al-mediated ring opening of a vinyl iodide/allylic epoxide to establish the C(12,13)anti stereochemistry, an organolithium coupling/olefination sequence to construct the C(9)-C(11) diene moiety and a sulfone alkylation/hydroxylation strategy to join the C(7)-C(14) and C(15)-C(20) fragments.