Formation of cinnoline derivatives by diazotization of o-aminoarylpropiolic acids or o-aminoarylacetylenes followed by hydration and cyclization. The method is applicable to preparation of cinnolines substituted in the benzenoid ring.
Hangzhou Huarong Pharm Co., Ltd. Hangzhou Huarong Pharm Co., Ltd. established since 2009 , has been always focusing on supplying products and servic.. Dayang Chem (Hangzhou) Co.,Ltd. Dayang Chem (Hangzhou) Co.,Ltd. dedicated to the development, production and marketing of chemicals which i.. NEM CHEMICAL CO.,LTD
NEM CHEMICAL CO.,LTD. (original name is Puyang MYJ Fine Chemical Co., Ltd. ) is high-tech compang co..