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Synthesis of Bis(indolyl)methanes Using Hyper-Cross-Linked Polyaromatic Spheres Decorated with Bromomethyl Groups as Efficient and Recyclable Catalysts.
ACS Omega ( IF 3.7 ) Pub Date : 2018-02-26 , DOI: 10.1021/acsomega.7b01925 Reddi Mohan Naidu Kalla 1 , Sung Chul Hong 2 , Il Kim 1
ACS Omega ( IF 3.7 ) Pub Date : 2018-02-26 , DOI: 10.1021/acsomega.7b01925 Reddi Mohan Naidu Kalla 1 , Sung Chul Hong 2 , Il Kim 1
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Highly uniform and hyper-cross-linked polyphenanthrene and polypyrene microspheres were synthesized by Friedel-Crafts bromomethylation of phenanthrene (Phn) and pyrene (Py) in the presence of zinc bromide as a catalyst, followed by self-polymerization of bromomethylated Phn and Py. The resultant 3-D carbon microspheres consisting of micro-, meso-, and macropores bear peripheral unreacted bromomethyl groups, which are directly utilized as catalysts to efficiently promote the electrophilic substitution reaction of indoles with aldehydes to yield a variety of bis(indolyl)methanes. The important features of this catalysis are easy catalyst synthesis, high product yields, environmental benignity, short reaction time, broad substrate scope, use of nontoxic solvents, and recyclability.
中文翻译：
使用溴甲基修饰的超交联聚芳烃作为高效可回收催化剂，合成双（吲哚基）甲烷。
在溴化锌作为催化剂的情况下，通过菲（Phn）和pyr（Py）的Friedel-Crafts溴甲基化反应，然后进行溴甲基化的Phn和Py的自聚合反应，合成了高度均匀且高度交联的聚菲和and微球。所得的由微孔，中孔和大孔组成的3-D碳微球带有未反应的周边溴甲基基团，可直接用作催化剂，以有效地促进吲哚与醛的亲电取代反应，生成各种双（吲哚基）甲烷。该催化的重要特征是催化剂易于合成，产物收率高，环境友好，反应时间短，底物范围宽，使用无毒溶剂和可回收性。
更新日期：2018-02-26
中文翻译：
使用溴甲基修饰的超交联聚芳烃作为高效可回收催化剂，合成双（吲哚基）甲烷。
在溴化锌作为催化剂的情况下，通过菲（Phn）和pyr（Py）的Friedel-Crafts溴甲基化反应，然后进行溴甲基化的Phn和Py的自聚合反应，合成了高度均匀且高度交联的聚菲和and微球。所得的由微孔，中孔和大孔组成的3-D碳微球带有未反应的周边溴甲基基团，可直接用作催化剂，以有效地促进吲哚与醛的亲电取代反应，生成各种双（吲哚基）甲烷。该催化的重要特征是催化剂易于合成，产物收率高，环境友好，反应时间短，底物范围宽，使用无毒溶剂和可回收性。
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