Delta-aminoalkylbenzofuranol ethers, and preparation method and application thereof
The invention relates to delta-aminoalkylbenzofuranol ethers represented by chemical structural formula I shown in the description, and an application thereof in the preparation of herbicides. In thechemical structural formula I, R is selected from C1-C2 alkyl groups, and n is selected from 2, 3 and 4.
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(2018/04/01)
Nucleophilic Substitutions of Alcohols in High Levels of Catalytic Efficiency
A practical method for the nucleophilic substitution (SN) of alcohols furnishing alkyl chlorides, bromides, and iodides under stereochemical inversion in high catalytic efficacy is introduced. The fusion of diethylcyclopropenone as a simple Lewis base organocatalyst and benzoyl chloride as a reagent allows notable turnover numbers up to 100. Moreover, the use of plain acetyl chloride as a stoichiometric promotor in an invertive SN-type transformation is demonstrated for the first time. The operationally straightforward protocol exhibits high levels of stereoselectivity and scalability and tolerates a variety of functional groups.
Stach, Tanja,Dr?ger, Julia,Huy, Peter H.
supporting information
p. 2980 - 2983
(2018/05/28)
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