Photoinduced-molecular transformations. 140. New one-step general synthesis of naphtho[2,3-b]furan-4,9-diones and their 2,3-dihydro derivatives by the regioselective [3 + 2] photoaddition of 2-hydroxy-1,4-naphthoquinones with various alkynes and alkenes:

R&D Labs maybe for 139386-48-4

• Shanghai Cheerchem Co., Ltd.

  Contact:86-21-50966856

  Address:Building 5,300 Chuanzhan Road,Pudong New District,Shanghai

• Shanghai Maxchemco Chemical Industry Co., Ltd.

  Contact:(86)21-51079223

  Address:No.1305-8, B241, the Ecust Park, Huajing Road, Xuhui District, Shanghai

• Wuxi Innopal International Trade CO.,LTD

  Contact:+86-510-80711901-8003

  Address:Room 402,Building 5,Longze Garden,No.17,South huanjiu Road,Yixing City, Jiangsu,China

• Hangzhou Share Chemical Co., Ltd(expird)

  Contact:+86-57187093700

  Address:Hang Xing Road

• Maithili Life Sciences

  Contact:+91 9963263336

  Address:Plot#146A, IDA Mallapur, Hyderabad - 500072