| abstract |
A photochromic compound: (I) comprising: (A) at least one photochromic group selected from a pyran, an oxazine and a feline; and (B) at least one elongation agent attached to at least one photochromic group, wherein the at least one elongation agent is selected from: (1) 4- (4-fluoro-phenoxycarbonyloxy) -piperidin-1-yl; (2) 4- (biphenyl-4-carbonyloxy) -piperidin-1-yl; (3) 4- (naphthalen-2-carbonyloxy) -piperidin-1-yl; (4) 4- (4-pentadecafluoroheptyloxy-phenylcarbamoyl) -benzyloxy; (5) 4- (3-piperidin-4-yl-propyl) -piperidin-1-yl; (6) bis- [1-PC name] -piperidin-4-yl] ester of biphenyl-4,4'-dicarboxylic acid or (II) selected from: (a) 3-phenyl-3- (4- (4-piperidinopiperidino) phenyl) -13,13-dimethyl-indene [2 ', 3': 3,4] naphtho [1,2-b] pyran; (b) 3-phenyl-3- (4- (4-phenylpiperazine) phenyl) -13,13-dimethyl-indene [2 ', 3': 3,4] naphtho [1,2-b] pyran; (c) 3-phenyl-3- (4-pyrrolidin-1-yl-phenyl) -13,13-dimethyl-6-methoxy-7- (4-phenyl-piperazin-1-yl) indene [2 ', 3 ': 3,4] naphtho [1,2- b] pyran; (d) 3-phenyl-3- (4-pyrrolidin-1-yl-phenyl) -13,13-dimethyl-6-methoxy-7 - ([1,4 '] bipiperidinyl-1``-yl) indene [ 2 ', 3': 3,4] naphtho [1,2- b] pyran; (e) 3-phenyl-3- (4 - ([1,4 '] bipiperidinyl-1'-yl) phenyl) -13,13-dimethyl-6-methoxy-7 - ([1,4'] bipiperidinyl- 1'-yl) indene [2 ', 3': 3,4] naphtho [1,2-b] pyran; (f) 3-phenyl-3- (4 - ([1,4 '] bipiperidinyl-1'-yl) phenyl) -13,13-dimethyl-6-methoxy-7- (4-benzylpiperidin-1-yl) indene [2 ', 3': 3,4] naphtho [1,2-b] pyran; (g) 3-phenyl-3- (4 - ([1,4 '] bipiperidinyl-1'-yl) phenyl) -13,13-dimethyl-6-methoxy-7- (piperadin-1-yl) indene [ 2 ', 3': 3,4] naphtho [1,2- b] pyran; (h) 3-phenyl-3- (4- (4-phenyl-piperazin-1-yl) phenyl) -13,13-dimethyl-6-methoxy-7- (4-phenyl-piperazin-1- yl) indene [2 ', 3': 3,4] naphtho [1,2-b] pyran; (i) 1,3,3-Trimethyl-6 '- (4-ethoxycarbonyl) -piperidin-1-yl) -spiro [indoline-2,3'-3H-naphtho [2,1-b] [1,4 ] oxazine]. |