Substituted photochromic 2H- naphtho 1,2-b pyran compounds

摘要

(57) Abstract Being the new reversible huotokuromitsukunahutopiran chemical compound which is displayed with formula (i), for example, in the 5th carbon of the nahuto region of nahutopiran it possesses the substituent of specification in 6th carbon the shikuroarukiruesuteru substituent, and with when, it discloses the chemical compound which at the same time possesses the substituent of specification in 2 rank of pyrane ring. Here, the substituent to 10th carbon may exist, the nahuto region of nahutopiran 7th, 8th and 9th or. It contains the chemical compound of this invention, or it discloses also various backing materials such as paper, glass and the organic polymer material which are covered with that. This kind of new nahutopiran chemical compound, or that combination with the complimentary huotokuromitsuku chemical compound (for example, other nahutopiran and indenonahutopiran etc of specification) was mixed, it seems the lens for ophthalmology or like the other plastic transparent bodies, study, concerning the transparent goods it has stated. Conversion 1