- Gold(I)-Catalyzed Intramolecular C(sp3)?H Insertion by Decarbenation of Cycloheptatrienes
-
A novel synthesis of indanes and dihydronaphtalenes based on the intramolecular insertion into C(sp3)?H bonds of gold(I) carbenes generated by retro-Buchner reaction (decarbenation) has been developed. Deuterium-labeling and kinetic isotope effect experiments, DFT calculations, and generation of the proposed carbene intermediate from a well-characterized gold(I) carbenoid support the involvement of a three-center concerted mechanism for the C(sp3)?H functionalization process.
- Yin, Xiang,Zuccarello, Giuseppe,García-Morales, Cristina,Echavarren, Antonio M.
-
supporting information
(2019/05/29)
-
- Palladium-Catalyzed Alkylation with Alkyl Halides by C(sp3)?H Activation
-
Utilizing halogens as traceless directing goups represents an attractive strategy for C?H functionalization. A two C?H alkylation system, initiated by the oxidative addition of organohalides to Pd0, has been developed. The first reaction involves an intermolecular alkylation of palladacycles to form C(sp3)?C(sp2) bonds followed by C(sp2)?H activation/cyclization to deliver alkylated benzocyclobutenes as the final products. In the second reaction, two C?C bonds are formed by the reaction of palladacycles with CH2Br2, and provides a facile and efficient method for the synthesis of indanes. The alkylated benzocyclobutene products can be transformed into tricyclic hyrocarbons, and the indane derivatives are essential structural motifs in bioactive and odorant molecules.
- Wu, Zhuo,Ma, Ding,Zhou, Bo,Ji, Xiaoming,Ma, Xiaotian,Wang, Xiaoling,Zhang, Yanghui
-
supporting information
p. 12288 - 12291
(2017/09/06)
-
- NOVEL OCTAHYDROINDENYL PROPANAL COMPOUNDS
-
The present invention pertains to novel octahydro-indene compounds and their unexpected advantageous use thereof in enhancing, improving or modifying the fragrance of perfumes, colognes, toilet waters, fabric care products, personal products, and the like.
- -
-
Page/Page column 36
(2017/05/02)
-
- Diaminoindane derivatives
-
The invention relates to diaminoindane derivatives represented by the following formula: STR1 wherein R1 and R2 are each selected from the group consisting of a hydrogen atom and a lower alkyl group having from 1 to 4 carbon atoms, and a process for preparing same.
- -
-
-