A method of making a compound of Formula I′
comprises reacting a compound of the formula DLCHO, with a compound of the formula
to produce the compound of Formula I′. Methods of using the compounds are also described, particularly as intermediates for the synthesis of porphyrin rods, which porphyrin rods are in turn useful for (among other things) the production of molecular memory devices.
Alkylthio Unit as an α-Pyrrole Protecting Group for Use in Dipyrromethane Synthesis
作者:Patchanita Thamyongkit、Anil D. Bhise、Masahiko Taniguchi、Jonathan S. Lindsey
DOI:10.1021/jo051806q
日期:2006.2.1
position. The dipyrromethane synthesis was carried out using a 2:1 ratio of 2-(RS)pyrrole/benzaldehyde with a catalytic amount of InCl3 at room temperature in the absence of any solvent. The α-RS group was removed by hydrodesulfurization using Raney nickel or nickel complexes. This stoichiometric synthesisusing the α-RS-protected pyrrole is in contrast to the traditional synthesis that employs an aldehyde
A compound represented by formula (1) and an N-oxide thereof have excellent pest control effect. (In the formula, Het to which R1—S(O)n is bonded represents a five-membered aromatic heterocyclic ring represented by formula H1, H2, H3 or H4 (wherein Y1 represents an oxygen atom or the like; Y2 represents an oxygen atom or the like; G1, G2 and G3 may be the same or different and each represents a nitrogen atom or the like; R1 represents a C1-C6 alkyl group which may have one or more atoms or groups selected from the group X, or the like; and n represents 0, 1 or 2); A1 represents an oxygen atom or the like; A2 represents a nitrogen atom or the like; A3 represents a nitrogen atom or the like; and R2 and R3 may be the same or different and each represents a C1-C6 chain hydrocarbon group which may have one or more atoms or groups selected from the group X, or the like.).